does anyone know how i can find the value of the expression ? it's a pretest so i dont know anything on here .
Answers
Answer:
hola que se ese deber
Step-by-step explanation:
nsjsvdhwiahxbdoqgxn entra a este
sbsgwvdiwgdvxiwydbcidyevxjdowhwbwlzyefwvdksowtgdidtebddiidtegbxidjhdh hxgdvdjzkHwY dbla de oro en wla y no se ese es él mio tlo de ede y tu que ases mi amor y tu te vas
I hope this helps thank you
Related Questions
Jim bought 5 packs of red bouncy balls, 2 packs of yellow bouncy balls, and 7 packs of green bouncy balls. There were 7 bouncy balls in each package. How many bouncy balls did Jim buy in all?
Answers
Answer:
108 bouncy balls
Step-by-step explanation:
2*7=14
5*7=35
7*7=49
14+35+49+108
LITERALLLLLLY DO AT 12
Answers
Answer:
New England had skilled craftsmen in the industry of shipbuilding. The Mid-Atlantic presented a diverse workforce of farmers, fisherman, and merchants. The Southern Colonies were primarily agricultural with few cities and limited schools.
Hope this helped :)
PLEASE no wrong answers
Answers
Answer:
2295
Step-by-step explanation:
multiply all of them together
Error Analysis: A store is instructed by corporate headquarters to put a markup of 67% on all items. An item costing $6 is displayed by the store manager at a selling price of $4. As an employee, you notice that this selling price is incorrect. Find the correct selling price. What was the manager's likely error?
Part 1: The correct selling price is (Round to the nearest dollar as needed.)
Part 2: What was the manager's likely error?
A. The manager set the selling price at the markup.
B. The manager subtracted the markup from the cost instead of adding it.
C. The manager set the selling price at the cost.
D. The manager added the markup to the cost instead of subtracting it.
Answers
Answer:
To find the correct selling price, we need to first find the cost of the item plus the markup. We can do this by multiplying the cost of the item by the markup percentage: $6 * 67% = $4.02. However, since the question asks us to round to the nearest dollar, we can round this number down to $4.
Therefore, the correct selling price is $4.
The manager's likely error was that they set the selling price at the cost (option C).
Step-by-step explanation:
The correct selling price is $10 and the manager set the selling price at the markup so option (A) is correct.
What is the percentage?The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.
The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.
As per the given,
Cost of item = $6
Markup = 67%
67% of $6 ⇒ 0.67 x 6 = $4.02
Add the markup in the cost = $6 + $4.02 = $10.02
Round to nearest dollars = $10.2 ≈ $10.
The manager put $4 which is a markup instant of the selling price of $10.
Hence "The correct selling price is $10 and the manager set the selling price at the markup".
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Helppppp
what are the answers
Answers
Answer:
A. 24 lap/hour.
B. r = 24h
You pick a card at random. 6 7 8 9 What is P(divisor of 70)? Write your answer as a percentage. %
Answers
Answer:
Step-by-step explanation:
A colored spinner with eight equal sections is given.
Using the fair spinner, determine P(less than 6) when the spinner is spun once.
0.125
0.25
0.625
0.875
Answers
Answer:
The probability of landing on less than two sections when the spinner is spun once is 0.25.
The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.
Mountain View School Seaside School
0 5, 8
9, 8, 2, 0 1 0, 1, 2, 5, 6, 8
8, 7, 6, 5, 5, 4, 4, 3, 1, 0 2 5, 5, 7, 7, 8
0 3 0, 6
Key: 2 | 1 | 0 means 12 for Mountain View and 10 for Seaside
Part A: Calculate the measures of center. Show all work. (2 points)
Part B: Calculate the measures of variability. Show all work. (1 point)
Part C: If you are interested in a smaller class size, which school is a better choice for you? Explain your reasoning. (1 point)
Answers
For Mountain View School:
Data: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 0 + 1 + 2 + 3 + 4 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 8 + 8 + 8 + 9) / 19
= 100 / 19
≈ 5.26
To find the median, we need to arrange the data in ascending order: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5
For Seaside School:
Data: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 1 + 1 + 2 + 2 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 7 + 8 + 8 + 8 + 9) / 19
= 80 / 19
≈ 4.21
To find the median, we need to arrange the data in ascending order: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5
Now let's calculate the measures of variability, specifically the range and interquartile range (IQR).
Range: The range is the difference between the largest and smallest values in the dataset.
For Mountain View School:
Range: 9 - 0 = 9
For Seaside School:
Range: 9 - 0 = 9
Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1) and measures the spread of the middle 50% of the data.
For Mountain View School:
Q1 = 3
Q3 = 7
IQR = Q3 - Q1 = 7 - 3 = 4
For Seaside School:
Q1 = 2
Q3 = 7
IQR = Q3 - Q1 = 7 - 2 = 5
To determine which school is a better choice for a smaller class size, we can consider both the mean and the median.
Both the mean and median for Mountain View School are higher than those for Seaside School. This suggests that, on average, the class sizes at Mountain View School are larger than those at Seaside School. Therefore, if you are interested in a smaller class size, Seaside School would be a better choice
For Mountain View School:
- Median: The median class size is the middle value, which is 25.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (29 + 28 + 28 + 27 + 25 + 24 + 24 + 23 + 21 + 20 + 19 + 18 + 15 + 13 + 10) / 15 = 21.27.
For Seaside School:
- Median: The median class size is the middle value, which is 20.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (25 + 25 + 27 + 27 + 28 + 28 + 28 + 30 + 31 + 35 + 36 + 38 + 40 + 43 + 45) / 15 = 31.13.
Part B:
For Mountain View School:
- Range: The range is the difference between the largest and smallest values, which is 29 - 10 = 19.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 20 and Q3 is 28. Therefore, the IQR is 28 - 20 = 8.
For Seaside School:
- Range: The range is the difference between the largest and smallest values, which is 45 - 25 = 20.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 27 and Q3 is 38. Therefore, the IQR is 38 - 27 = 11.
Part C:
If you are interested in a smaller class size, Mountain View School is a better choice for you because it has a lower mean and median class size than Seaside School.
A student is asked to find the length of the hypotenuse of a right triangle. The length of one leg is 38 centimeters, and the length of the other leg is 29 centimeters. The student incorrectly says that the length of the hypotenuse is 8.2centimeters. Answer parts a and b.
Find the length of the hypotenuse of the right triangle to the nearest tenth of a centimeter.
The length of the hypotenuse of the right triangle to the nearest tenth of a centimeter is ..... cm
(Round to the nearest tenth as needed.)
Answers
Answer:
1,142.5 or 1,143
Step-by-step explanation:
Part A: Start by writing out the equation a2 + b2 = c2. Since both sides a and b are known, fill it in. So, now it is 38 squared + 29 squared = c2. Next, you have to find the square roots for both sides, or legs. For 38 squared, it will be 38 x 38 = 1,444. For 29 squared, it will be 29 x 29 = 841. Now that we both legs, we add that together: 1,444 + 841, which equals 2,285. Then, you need to divide 2,285 by 2, which is 1,142.5
Since you need to round, it would be 1,143.
Part B: 1,143
Choose the graph of the solution to the inequality c – 12 ≥ –16.
A. A number line with a closed dot at negative 4, shaded to the right.
B. A number line with a closed dot at 4, shaded to the left.
C. A number line with a closed dot at 4, shaded to the right.
D. A number line with a closed dot at negative 2, shaded to the right.
Answers
Answer: C
Step-by-step explanation:
\(C-12\geq -16\)
+12 +12
C \(\geq\) -4
Since there is a line under the symbol, that means a closed dot. Since C is greater than or equal to -4, it is shaded to the right.
I need help on these 5 questions:
Answers
Step-by-step explanation:
(2x-3)² - (4x+1)(x − 4)
4x² - 12x + 9 - 4x² - 16x + x - 4
group like terms
4x² - 4x² - 12x+x+9-4
-11x + 5
2.35 divided by 12 and to the nearest whole number. please explain how you got your answer.
Answers
Answer:
0
Step-by-step explanation:
If you divide 2,35 by 12 you get 0.1958333333, which rounds to 0.
Answer:
0
Step-by-step explanation:
2.35 / 12 = 0.1958333...
2.35 = 47 / 20
47 / 20 ÷ 12 / 1
47 / 20 x 1 / 12 = 47 / 240
47 / 240 = 0.1958333....
0.1958333... rounded to the nearest whole number is ZERO. Because 1 is smaller than 4, which means that you would not round up.
I need help Right NOw(will give brainliest) Which expression is equivalent to (3.1x−2.4y+1.9)+(2.2x−1.4y−3.4)?
1.(3.1x+2.2x)+(−2.4y+(−3.4y))+(1.9+(−1.4))
2.(3.1x+2.2x)+(−2.4y+1.4y)+(1.9+3.4)
3.(3.1x+2.2x)+(−2.4y+(−1.4y))+(1.9+(−3.4))
4.(3.1x+(−2.2x))+(−2.4y+(−1.4y))+(1.9+(−3.4))
Answers
Answer: 12
Step-by-step explanation:
adsfffffffffffffffffffffffffffffffffffffffffffffffffffffffff
All digits in a dropdown number are different, and one of its digits is the average of all its digits. It has at least two digits. For example, 5021 is a dropdown number, but neither 4389 nor 6033 is a dropdown number.
Questions:
1. Find the smallest dropdown number.
2. What are the smallest and largest 4-digit dropdown numbers?
3. How many 3-digit dropdown numbers are there?
4. Is it possible for a pair of consecutive numbers to both be dropdown numbers? If not, explain why not. If it is possible, find the smallest such pair.
Answers
1. Start the search among 2-digit numbers. A dropdown number (DDN) with 2 digits is a number \(ab\) such that
\(\dfrac{a+b}2 = a \implies a + b = 2a \implies b = a\)
or
\(\dfrac{a+b}2 = b \implies a+b = 2b \implies a=b\)
but both of these solutions violate the requirement that the digits are distinct, so there are no 2-digit DDNs.
A 3-digit DDN \(abc\) is such that
\(\dfrac{a+b+c}3 = a \implies a+b+c = 3a \implies b+c = 2a\)
or \(a+c=2b\) if the average is \(b\), or \(a+b=2c\) if the average is \(c\). The smallest possible value for \(a\) is 1 since we require 3 digits. Then \(b+c=2\), and we can pick \(b=0\) and \(c=2\) to get the smallest DDN, 102.
2. In a 4-digit DDN \(abcd\), we have
\(\dfrac{a+b+c+d}4 = a \implies a + b + c + d = 4a \implies b+c+d=3a\)
or \(a+c+d=3b\) or \(a+b+d=3c\) or \(a+b+c=3d\).
We're free to fix \(a=1\) and \(b=0\) to try to get the smallest DDN. This leaves us with \(c+d=3\) or \(c+d=-1\) or \(1+d=3c\) or \(c=3d\).
The first two cases are impossible - the only choices for \(c,d\) such that \(c+d=3\) are 1 and 2, and the sum of two positive integers must be positive. The smallest possible value of \(c\) is 2; this leaves us with \(1+d=6\) or \(2=3d\), but the latter case is impossible because 3 does not divide 2. So \(d=5\), and the smallest 4-digit DDN is 1025.
To find the largest DDN, start with the largest possible values for \(a\) and \(b\). Let \(a=9\) and \(b=8\). Then \(c+d=19\) or \(c+d=15\) or \(17+d=3c\) or \(17+c=3d\). At most, we can have \(c+d=13\) with 7 and 6, so the first two cases are impossible. If we maximize \(c=7\), then either \(17+d=21\implies d=4\) or \(24=3d\implies d=8\) (which we don't want). So the largest 3-digit DDN is 9874.
3. I don't have an analytical solution to this, but using brute force (program) the total count is 112.
4. It is possible; consider 1249 and 1250, with digital averages
\(\dfrac{1+2+4+9}4=4 \text{ and } \dfrac{1+2+5+0}4=2\)
which happens to be the smallest pair. (Also found with brute force.)
The temperature rises 4 degrees every hour for 10 hours. What is the constant of proportionality in this situation?
Answers
Answer:
+4
Step-by-step explanation:
Mmm since it goes up by 4 every hour for 10 hrs
It's constantly going up by 4
Hope this helps dude ^-^
the temperature is going up +4 each hour...
What is the result of squaring 19?
Answers
Answer:
The result of squaring 19 is 361
Step-by-step explanation:
19²
= 19×19
= 361
A chef made 150 cups of chili and sold 60% of it. A serving size of the chili is 1 2/3 cups. How many servings of the chili were sold.
(Unit: expressions & equations)
Answers
150× 60% ÷ 1⅔
150×60/100 ÷ 5/3
15 × 6 ×3/5
3 × 18
54
54 servings of the chili were sold.
The number of cups of chili that he sold will be will be 90 cups. Then the number of servings of the chili sold will be 54.
What is the percentage?The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates to one hundred percent. It is symbolized by the character '%'.
A chef made 150 cups of chili and sold 60% of it. Then the number of cups of chili that he sold will be calculated as,
⇒ 60% of 150
⇒ 0.60 x 150
⇒ 90 cups
The serving size of the chili is 1 ²/₃ cups.
Convert the mixed fraction number into a fraction number, then we have
1 ²/₃ cups = 1 + 2/3
1 ²/₃ cups = 5/3 cups
Then the number of servings of the chili sold will be calculated as,
⇒ 90 / (5/3)
⇒ 90 x (3 / 5)
⇒ 18 x 3
⇒ 54
The number of cups of chili that he sold will be will be 90 cups. Then the number of servings of the chili sold will be 54.
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can someone help me with this,thank you
Answers
Answer:
2) 4
3) 8
Step-by-step explanation:
Part 2:
= \(\displaystyle \frac{1}{3}\)
Multiply the numerator and denominator by 4
= \(\displaystyle \frac{1 \times 4}{3 \times 4}\)
= \(\displaystyle \frac{4}{12}\)
So, 4 will be placed in the empty box.
Part 3:
= \(\displaystyle \frac{2}{3}\)
Multiply the numerator and denominator by 4
= \(\displaystyle \frac{2 \times 4}{3 \times 4}\)
= \(\displaystyle \frac{8}{12}\)
So, 8 will be placed in the empty box.
\(\rule[225]{225}{2}\)
The distance between the elementary school and the middle school is 4 miles. On the map, the two locations are One-half inch apart. What is the scale of the map?
1 inch = 8 miles
1 inch = StartFraction 1 over 8 EndFraction mile
One-half inch = 1 mile
4 inches = 1 mile
Answers
1 inch = 8 miles
1/2in + 1/2in = 1in
4 + 4 = 8
I know this because half of 8 is 4 and that is the distance between the locations
According to the line plot, how much more is the total weight of the 1/2 of a pound dog toys than the weight of the 5/8 of a pound dog toys?
(WILL GIVE BRAINLYEST TO *BEST* ANSWER)
Answers
Answer:
1/8 more
Step-by-step explanation:
the fraction 1/2 can be changed to the fraction 4/8. with the other fraction being 5/8, the only answer is 1/8 more than the 1/2 pound dog toy.
1/8 more is the total weight of the 1/2 of a pound dog toys than the weight of the 5/8 of a pound dog toys.
What is Graph?Graph is a mathematical representation of a network and it describes the relationship between lines and points.
We need to find how much more is the total weight of the 1/2 of a pound dog toys than the weight of the 5/8 of a pound dog toys.
Let us convert 1/2 to have denominator 8 to calculate it easily.
Multiply numerator and denominator by 4
4/8
Now subtract five by eight and four by eight
5/8-4/8
We get one by eight
1/8
Hence, 1/8 more is the total weight of the 1/2 of a pound dog toys than the weight of the 5/8 of a pound dog toys.
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HELP DUE IN 5 MINUTES!!!!!!!!!!!!!!!
Ice cream is packed in cylindrical gallon tubs. A tub of ice cream has a total surface of 387.79 square inches. If the diameter of the tub is 10 inches, what is it's height? use n = 3.14.
7.35 inches
7.65 inches
14.7 inches
17.35 inches
Answers
Answer: The required height of the tub is given as 7.35 inches.
Step-by-step explanation:The total surface area of the given cylindrical tub = 387.79 in.²
The diameter of the tub = 2r = 10 inches
where r = radius
r = 10/2 = 5 inches
T total surface of a cylinder = 2πr² + 2 π rh
387.79 = 2 * 3.14 * 5*5 + 2 * 3.14 * 5 * h
387.79 - 157 = 31.4h
h = 7.35 inches
sorry im late i just opened the app :((( hope you do well good luck
stream on the street
화이팅!
What is the experimental probability of drawing a red marble, given the following results?
Marble Color Blue Green Red
Times Drawn 8 5 7
Answers
Answer:
7 / 20 | 7 Out of 20 | 35%
Step-by-step explanation:
Answer:
Fraction form: 7/20
Word form: Seven out of twenty
Persentage form: 35%
Step-by-step explanation:
given a spare with a diameter of 8.6 cm, find its volume to the nearest whole number. a. 2663m b. 187 cm c. 333 cm d. 54 cm
Answers
It's about C. 333cm using the equation \(V=\frac{4}{3}\pi r^3\)
Please help me if you can. Please also write how you got the answer thank you.
Answers
First state your variables:
a = Andile
Everything is related to Andile and therefore we do not need to make this equation more difficult by adding in more variables.
a + (a - 40) + 2(a - 40) = 380
Expand brackets and simplify:
2a - 40 + 2a - 80 = 380
4a - 120 = 380
4a = 500
Then solve for 'a' by dividing by both sides:
a = $125
Now we know Andile's pay we can find Taylor's quite easily:
t = a - 40
t = 125 - 40
t = $85
Taylor earned $85.
Please mark as brainliest :)
Hope this helps :)))
Given parallelogram
PARK:
Prove graphically and algebraically that a clockwise rotation of
270°
about the origin has an equivalent counterclockwise rotation. In your final answer, name the equivalent counterclockwise rotation and show all of your work. On your graph, label the following:
parallelogram
PARK
and the coordinates of all four of its vertices
parallelogram
P′A′R′K′
and the coordinates of all four of its vertices
center of rotation and its coordinate
the invisible circle of rotation, its radius and the length of the radius
use arrows to show the clockwise movement of the parallelogram
Answers
Step-by-step explanation:
hope you understand:))
what is 1+1-1 plssssssssssssssssssssssssssssssss its a test and its impossible to solve
Answers
Answer:
1
Step-by-step explanation:
1+1 =2
and 2-1=1
since the 2 is a bigger no. 1 got the sigh of +
A school held a jump roping contest, Diego jumped rope for 20 minutes . Jada jumped rope for 15 minutes. What percentage of Diego's time is that?
Answers
if you take diego’s total amount and divide it by 4 you’d get 5 so that means 5=1/4 of 20 aka 100% therefore 15 = 3/4 = 75% of 100
You have a pizza with diameter 12
2
3 in., and a square box that is 12.65 in. across. Write 12
2
3 as a decimal. Can you fit the pizza inside the box?
What is the decimal expansion for 12
2
3?
A.12.6
B.12.65
C.12.6
D.12.66
pls help me
Answers
Answer:
D is the right choice and no you cannot fit the pizza inside the box.
Step-by-step explanation:
D is the answer because to turn 2/3 into a decimal you would divide 2 by 3 and the answer you would get would be 0.66666666666...You would then add 12 to the answer and get 12.6666... Once you get this answer you would round it to the hundredths to get 12.67 but since that is not an option you could use D, 12.66 inches.
Answer:
I believe the answer is D.
Step-by-step explanation:
Hawaii has an area of 1.1 × 10^4 square miles and a population of 1.2 × 10^6 people.
Which key strokes on a calculator will give the population density of Hawaii?
A) 1.2EE6x1.1EE4
B) 1.2EE6/1.1EE4
C) 1.1EE4+1.2EE6
D) 1.1EE4/1.2EE6
(The Slashes in 2 and 4 mean divided by.)
Answers
The other day, we made drink mixtures by mixing 4 teaspoons of powdered drink mix for every cup of water. Here are two ways to represent multiple batches of this recipe:
How can we tell that 4:1 and 12:3 are equivalent ratios?
How are these representations the same? How are these representations different?
How many teaspoons of drink mix should be used with 3 cups of water?
How many cups of water should be used with 16 teaspoons of drink mix?
What numbers should go in the empty boxes on the double number line diagram? What do these numbers mean?
Answers
The question asked, “ How many teaspoons of drink mix should be used with 3 cups of water” You would have to put 12 teaspoons of drink mix.