At a skateboard shop: The store buys a helmet for $19.00 and sells it for $31.50. What percentage was the markup?
A. 63.4%
B. 64.8%
C. 65.8%
D. 66.8%
Judy and her sister went together to get haircuts. Judy got 9 3/5 inches cut off and her sister got 4 1/10 inches cut off. Compared to her sister, how much more hair did Judy get taken off?
Write your answer as a fraction or as a whole or mixed number.
Answer:
5 1/2
Step-by-step explanation:
9 3/5 - 4 1/10
First you need to get common denominator, as we see that we need to get the 5 from the 3/5 to ten, so we multiply 3/5 by 2 on both of the numerator and denominator and you will get 6/10. So the new fraction would be 9 6/10 - 4 1/10 = which would be subtractable. Therefore the answer would be 5 5/10 which equals
5 1/2
Answer:
5.5 more inches
Step-by-step explanation:
9 3/5 - 4 1/10 = 5.5
HEEEELLLPPPPPP!! Idk what to doooooooo.
Help!
The number of cookies that were made at a bakery for each of seven days is shown:
108, 96, 96, 84, 108, 240, and 84
The best measure of center for this data set is the-
A: median because all of the values are close to one another in value
B: mean because all of the values are close to one another in value
C: median because 240 is much higher than the other numbers in the data set
D: mean because 240 is much higher than the other numbers in the data set
Answer the question below
Answer:
i think negative
Step-by-step explanatio
if there were values, x could be 0.7, and y could be -1.5. if you subtract that, itd be -0.8 which is negative.
y looks further from the 0 than x, and since y is negative, itd make the answer negative
What is the equation of the line that passes through the point (-3,7) and has a slope of -4/3
Answer:
y=-4/3+3
Step-by-step explanation:
To find this equation in slope-intercept form you must first put it into point-slope form. Remember point-slope is \(y-y_{2}=m(x-x_{2})\) so plugin the points and slope to get \(y-7=-4/3(x+3)\). Then solve the equation for y.
First, distribute the -4/3
y-7= -4/3x-4
Then, add 7 to both sides
y=-4/3+3
Answer:
y=-4/3x+3
Step-by-step explanation:
y-7=-4/3(x-(-3))
y-7=-4/3x-4
y=-4/3x+3
if you remove one red marble from the bag and add one blue marble , what fraction of the marbles are blue?
Answer:
This depends on how many blue and red marbles there are in total.
Answer:
D) 2/3
Step-by-step explanation:
If you remove 1 red marble then there is 1 marbles left red.
If you add a blue marble then there is 4 blue marbles.
So it is 4/6 and when you simply it is 2/3.
The crowd at a soccer game is estimated to be 1,200 people. The exact attendance is 1,280. What is the percent error?
Answer:
56.25%
Step-by-step explanation:
[estimated - actual] / actual × 100
3000 - 1280/1280 x 100 = 56.25%
Answer:
56.25%
Step-by-step explanation:
I NEED HELP!!
4 + 3 + 3 = ?????
Answer:
10 is the answer
Step-by-step explanation:
You add 3 to 4 getting 7. Adding 3 to 7 gets you 10
Answer:
its 10... 4+3=7+3=10..........
Ryan can tar a roof in 15 hours. Stefan can tar the same roof in 11 hours. Find how long it would take them if they worked together.
Answer:13 hours
Step-by-step explanation: remember you are averaging so you add the two numbers and divide by the number of numbers, 2. So, 15+11=26, 16 divided by 2=13
Answer:
15+11=26 divided by 2=13
Step-by-step explanation:
Help me please. I slightly understand 2
Check the picture below.
so the shape on 2) is simply the shape of a rectangular prism underneath a right-cylinder, now if we take the cylinder from the prism, we have the picture as you see below, so let's simply get the area of cylinder excepting the bottom part, and then we'll take the area of the prism excepting the cylindrical part above it.
now, the area of the prism is simply the area of 6 rectangles, and the area of the cylinder is just the area of one circle above and the lateral area of it.
\(\stackrel{ \textit{\LARGE area of the prism} }{\stackrel{\textit{front and back}}{(25)(5)}+\stackrel{\textit{left and right}}{(25)(5)}+\stackrel{\textit{top and bottom}}{(25)(25)}~~ - ~~\stackrel{ \textit{excepted area} }{\pi (10)^2}} \\\\\\ 125+125+625~~ - ~~100\pi ~~\approx ~~ 560.84 \\\\[-0.35em] ~\dotfill\)
\(\stackrel{ \textit{\LARGE area of the cylinder} }{\stackrel{ \textit{circular top} }{\pi (10)^2}~~ + ~~\stackrel{ \textit{lateral area} }{2\pi (10)(5)}}\implies 100\pi +100\pi ~~ \approx ~~ 628.32 \\\\[-0.35em] ~\dotfill\\\\ 560.84~~ + ~~628.32 ~~ \approx ~~ \text{\LARGE 1189.16}~cm^2\)
1189.16 cm²
Step-by-step explanation:So the shape on 2) is simply the shape of a rectangular prism underneath a right-cylinder, now if we take the cylinder from the prism, we have the picture as you see below, so let's simply get the area of cylinder excepting the bottom part, and then we'll take the area of the prism excepting the cylindrical part above it.
Now, the area of the prism is simply the area of 6 rectangles, and the area of the cylinder is just the area of one circle above and the lateral area of it.
Area of the Prism = (25 * 5) + (25 * 5) + (25 * 25) - (100 * π)
= 125 + 125 + 625 - 100 π
= 560.84 cm²(Approximately)
Area of the cylinder = (π * 10²) + (2π * 10 * 5)
= 100π + 100π
= 628.32 cm² (Approximately)
Total area = Area of prism + Area of cylinder
= 560.84 + 628.32
= 1189.16 cm² (Approximately)
Please mark my answer as the BRAINLIEST. Plsssssssssssssssss
Hope my answer helps you.
:)
I am surprised to see that the genius had the same answer as me!!!!!!!
Can someone explain how to do this? I can’t figure it out..
Answer: The cost is increasing by 800 per ton
Step-by-step explanation: The easiest way to do this is by finding where each point on the graph is. Basically go from the numbers at the bottom (1,2,3,etc) and see where the lines above those numbers intersect with the line itself. If you look at the number 1 at the bottom of the graph and move up towards the line you will see that the 1 intersects with the 2000 meaning that one ton would cost 2000 dollars. If you do the same thing for the 2, which would be 2800, and then subtract those two numbers, 2800-2000, you would get 800. Hope this helps!
How do you multiply 2 1/4*4/7
Help explain it please
Conversion a mixed number 2*1/4
to a improper fraction: 2*1/4 = (2* 1)/4
= (2( 4 )+ 1)/4 = (8 + 1)/4 = 9/4
To find a new numerator:
a) Multiply the whole number 2 by the denominator 4. Whole number 2 equally
(2 * 4)/4 = 8/4
b) Add the answer from the previous step 8 to the numerator 1. New numerator is 8 + 1 = 9
c) Write a previous answer (new numerator 9) over the denominator 4.
Two and one quarter is nine quarters.
Conversion a mixed number
1*4/7
to a improper fraction:
1*4/7 = 1*4/7 = 1 *( 7 + 4) / 7= (7 + 4) / 7= 11 / 7
To find a new numerator:
a) Multiply the whole number 1 by the denominator 7. Whole number 1 equally 1 * 7/ 7 = 7/7
b) Add the answer from the previous step 7 to the numerator 4. New numerator is 7 + 4 = 11
c) Write a previous answer (new numerator 11) over the denominator 7.
One and four sevenths is eleven sevenths.
Multiple: 9/4 * 11/7 = 9 * 11 /4 * 7= 99/28= 3.53571
Answer: Your answer is 1 2/7
Step-by-step explanation:
First:
Convert any mixed numbers to fractions.
Then your initial equation becomes:
9/4 × 4/7
Applying the fractions formula for multiplication,
=9/4 x 4/7 (A Times symbol beside each number)
=36/28
Simplifying 36/28, the answer is
=1 2/7
Hope it helped! :D
What is the domain and range of:
Answer:
b
Step-by-step explanation:
how it works with life
Mary and Jim collect baseball cards. Mary has five more than three times as many cards as Jim. The total number of cards they both have is 147. How many cards do they each have?
Please give me a right answer I will give 100 pt and brainliest
Answer:
m = 111.5
j = 35.5
I really hope this is right ;(
Step-by-step explanation:
m = 3j + 5
j + 3j + 5 = 147
4j + 5 = 147
4j = 142
142 ÷ 4 = 35.5
So j = 35.5
3(35.5) + 5 = 111.5
Please help me. My homework is due at 11:59
60 points
Lana uses factoring by grouping to factor the polynomial 8x2y−10xy2+12x−15y. Her work is shown below, but the last two lines of work are missing.
8x2y−10xy2+12x−15y
(8x2y−10xy2)+(12x−15y)
__[blank 1]__
__[blank 2]__
Select one statement for each blank to correctly complete Lana’s work.
blank 1: 2xy(4x−5y)+3(4x−5y)
blank 1: −4x(2xy+3)+5y(2xy+3)
blank 2: (2xy−3)(4x+5y)
blank 1: −2xy(4x+5y)−3(4x+5y)
blank 2: (2xy+3)(4x−5y)
blank 2: −(2xy+3)(4x−5y
NEED PROOF FOR POINTS
Answer:
blank 1: 2xy(4x-5y)+3(4x-5y)
blank 2: (2xy+3)(4x-5y)
Step-by-step explanation:
Using factoring group to factor the polynomial 8x²y−10xy²+12x−15y
Step 1: Group the polynomial function
(8x²y−10xy²)+(12x−15y)
Step 2: Factor the common value and variables from the functions in parentheses.
= (2xy*4x - 2xy(5y)) + (3(4x) - 3(5y))
= 2xy(4x-5y)+3(4x-5y)
Step 3: Rearrange the expression by selecting one of the function in parentheses and combine those not in parenthesis.
(2xy+3)(4x-5y)
The final expression gives the factor form of the polynomial.
Hence the statement for each blank that correctly completes Lana's work are;
blank 1: 2xy(4x-5y)+3(4x-5y)
blank 2: (2xy+3)(4x-5y)
(Edge.)
Which number line shows the graph of Negative 2.75 less-than x?
A. A number line going from negative 3 to positive 3. An open circle is at negative 2.75. Everything to the left of the circle is shaded.
B. A number line going from negative 3 to positive 3. An open circle is at negative 2.75. Everything to the right of the circle is shaded.
C. A number line going from negative 3 to positive 3. A closed circle is at negative 2.75. Everything to the left of the circle is shaded.
D. A number line going from negative 3 to positive 3. A closed circle is at negative 2.75. Everything to the right of the circle is shaded.
Answer:
D
Step-by-step explanation:
What is this transformation called?
Dilation
Reflection
Translation
Rotation
Answer:
dilation
Step-by-step explanation:
it got smaller
Factor the expression using the GCF.
Answer:
Step-by-step explanation:
In this problem, both 7 and 14 can be divided by 1 and 7, meaning these are the factors. This tells us that 7 is the Greatest Common Factor, as 7 is greater than 1.
To factor the expression, we take 7 out of both numbers and put it outside the expression. To do this, we have to divide both numbers by 7. Doing this gives us \(7(\frac{7}{7} +\frac{14}{7} )\), which simplifies to \(7(1 + 2)\).
Answer: 21
Step-by-step explanation:
because I had that as a question in my math book
help me please no wrong answerssss
Answer: y = 1/2x + 1
Step-by-step explanation:
The formula is y = mx + b where mx is the slope (rate of change) and b is the initial value (y-int), here your rate of change is 1/2 so mx= 1/2x and your y-int(starting value) is 1 so b = 1
therefore:
y = 1/2x + 1
Mica bought a sandwich for $1.50, a soda for 50c,and candy for 75c.How's much did he spend on lunch?___
Answer:
$ 2.75
Step-by-step explanation:
$1.50+.50+.75=2.75
Answer:
$2:75 she spend for lunch lonche
pls help its for a grade and i need to up my grade
Answer:
l
Step-by-step explanation:
Order five and two-tenths repeating, negative five and one-third, 520%, and −5.7 from least to greatest.
five and two-tenths repeating, 520%, −5.7, negative five and one third
five and two-tenths repeating, 520%, negative five and one third, −5.7
−5.7, negative five and one third, 520%, five and two-tenths repeating
negative five and one third, −5.7, five and two-tenths repeating, 520%
Answer:
−5.7, negative five and one third, 520%, five and two-tenths repeating
decimal skill pratice
1) A big-bend gecko is 16.8 centimeters long. A yellow-headed gecko is 8.9 centimeters long. How much longer is the big-bend gecko?
2) A gray-banded kingsnake is 120.7 centimeters long. A common kingsnake is 208.3 centimeters long. How much longer is the common kingsnake?
3) A green water snake is 187.75 centimeters long. A plain-bellied water snake is 157.5 centimeters long. How much shorter is the plain-bellied water snake?
4) A tiger rattlesnake is 91.39 centimeters long. A Mojave rattlesnake is 129.5 centimeters long. What is their combined length?
5) One Western rattlesnake is 162.6 centimeters long. Another of the same species is 41.66 centimeters long. What is their combined length?
6) One brown water snake is 175.3 centimeters long, another is 71.23 centimeters long, and a third is 101.333 centimeters long. What is the total length of the three snakes?
7) An Eastern hognose snake is 114.49 centimeters long. A western hognose snake is 89.5 centimeters long. What is the difference in length?
8) A many-lined skunk is 19.399 centimeters long. A prairie skunk is 20.6 centimeters long. What is the difference in length?
9) A racerunner is 26.7 centimeters long. A New Mexican whiptail is 30.199 centimeters long. What is their combined length?
10) One Western fence lizard is 15.222 centimeters long. Another is 23.444 centimeters long. A third lizard is 20.997 centimeters long. What is their total length
Step-by-step explanation:
1. The big-bend gecko is longer by 7.9 centimeters (16.8 - 8.9 = 7.9).
2. The common kingsnake is longer by 87.6 centimeters (208.3 - 120.7 = 87.6).
3. The plain-bellied water snake is shorter by 30.25 centimeters (187.75 - 157.5 = 30.25).
4. The combined length of the tiger rattlesnake and Mojave rattlesnake is 220.89 centimeters (91.39 + 129.5 = 220.89).
5. The combined length of the two Western rattlesnakes is 204.26 centimeters (162.6 + 41.66 = 204.26).
6. The total length of the three brown water snakes is 347.863 centimeters (175.3 + 71.23 + 101.333 = 347.863).
7. The difference in length between the Eastern hognose snake and the Western hognose snake is 24.99 centimeters (114.49 - 89.5 = 24.99).
8. The difference in length between the many-lined skunk and the prairie skunk is 1.201 centimeters (20.6 - 19.399 = 1.201).
9. The combined length of the racerunner and the New Mexican whiptail is 56.899 centimeters (26.7 + 30.199 = 56.899).
10. The total length of the three Western fence lizards is 59.663 centimeters (15.222 + 23.444 + 20.997 = 59.663).
Rosalyn has three different-shaped containers that contain marbles. She has 3 round containers, each holding 16 marbles.
She has 4 square containers, each holding 25 marbles. She has 2 rectangular containers, each holding 33 marbles.
How many marbles are in the containers altogether? Enter your answer in the box.
Answer:
42,996
Step-by-step explanation:
3*16+4*25+2*33=48+100+66=214
Hey guy, I am really struggling with this problem!
Question: x/-7 ≤ 8
Answer:
x >= -56
Step-by-step explanation:
We cross multiply so x times 1, and -7 times 8.
We get x<= -56, but we need to flip the sign because we multiplied by a negative number.
Hope it helped :)
Evaluate 3r³+5,when r=2
Answer:
29
Step-by-step explanation:
Answer:
221
Step-by-step explanation:
r=2
32³+5=
3x2= 6
6³ +5
6x6x6 = 216
216 + 5 =221
Hope this helps please give me brainliest!
Find the approximate radius of a circle with a circumference of 2 kilometers. Use 3.14 for π. Round to the nearest hundredth if necessary.
Answer:
0.32 (rounded to the nearest hundredth)
Step-by-step explanation:
If you have any questions ask me please! :)
Answer:
0.32 km
Step-by-step explanation:
Using the formula r = c / (2 * π), where c = 2 kilometers and π = 3.14, we can calculate the radius as:
r = 2 km / (2 * 3.14)
r = 2 km / 6.28
r = 0.31847133758 km
Rounding this to the nearest hundredth gives:r ≈ 0.32 km
Therefore, the approximate radius of the circle is 0.32 kilometers.
20 points to whoever answers this right!!