Maria has made $28 selling bracelets at a craft fair. She spends $52 on supplies to make the bracelets. She sells each bracelet for $3. Which inequality can Maria use to find how many more bracelets she needs to sell to make more money than she spent on supplies. A. 3x + 52 < 28 B. 28x +3 >52 C. 3x + 28 < 52 D. 3x +28 > 52
Answer: D. 3x +28 > 52
Step-by-step explanation:
Based on the information given, the inequality that Maria can use to find how many more bracelets she needs to sell to make more money than she spent on supplies will be calculated thus:
With the question above, the total sales must be greater than the amount spent on supplies. Let the number of bracelets that needs to be sold be represented by x.
Therefore, (3 × x) + 28 > 52
= 3x + 28 > 52.
We can calculate further
3x > 52 - 28
3x > 24
x > 24/3
x > 8
Therefore, 9 or more bracelets needs to be sold since x is greater than 8.
Therefore, the correct option is D 3x +28 > 52
Answer:
D. 3x + 28 > 52
Step-by-step explanation:
Tiffany and Dion are having a walking race. The equation and graph show the distance each person is from the starting line,
Tiffany's Distance
d = 2.5t, where d is the distance, in yards that Tiffany is from the starting line after t seconds
PLEASE ANSWER A., B. And C.
Answer:
Step-by-step explanation:
Tiffany's distance is defined by the equation,
d = 2.5t
Here, d = distance of Tiffany from the starting line
t = time
a). d = 2.5t
\(\frac{d}{t}=2.5\)
Tiffany's rate = 2.5 yards per second
b). Since, slope of a line passing through two points \((x_1,y_1)\) and \((x_2,y_2)\) is given by,
Slope = \(\frac{y_2-y_1}{x_2-x_1}\)
Therefore, slope of the line passing through two points (0, 10) and (10, 35)
= \(\frac{35-10}{10-0}\)
= 2.5 yards per second
Dion's walking rate = 2.5 yards per second
Equation that defines the distance of Dione,
d = mt + b
Here, m = rate of the walking by Dione
b = y-intercept
Hence, equation will be,
d = 2.5t + 10
c). If d = 60 yards
For Tiffany,
d = 2.5t
60 = 2.5t
t = 24 seconds
For Dion,
d = 2.5t + 10
60 = 2.5t + 10
2.5t = 50
t = 20 seconds
Therefore, Dion will take less time and finish first.
When rolling a fair, eight-sided number cube, determine P(number greater than 2).
0.25
0.50
0.66
0.75
Answer: B 0.50
Step-by-step explanation:The probability P(number greater than 4) is (b) 0.50
How to determine the probability P(number greater than 4).
From the question, we have the following parameters that can be used in our computation:
A fair, eight-sided number cube
This means that
Sample size = 8
Numbers greater than 4 = 4
The probability
Alan weighs 3 pounds more than twice what Dylan weighs. Write an expression o represent Alan’s weight in terms of Dylan’s weight.
Answer:
2x+3
Step-by-step explanation:
2x+3=Alan's Weight
2x= Dylan's weight times two
+3= the plus three more pounds
Which then equals Alan's weight.
A withdrawal of AED 4,000 from your bank account.
The integer that represents the situation is
Answer:
The answer is -4000.
Step-by-step explanation:
The answer is -4000 because you took money from your bank account, withdraw.
Triangle SAM is congruent to Triangle REN. Find x and y.
\(\measuredangle A\cong \measuredangle E\implies 112=16x\implies \cfrac{112}{16}=x\implies \boxed{7=x} \\\\[-0.35em] ~\dotfill\\\\ \overline{MS}\cong \overline{NR}\implies 41=3x+5y\implies 41=3(7)+5y\implies 41=21+5y \\\\\\ 20=5y\implies \cfrac{20}{5}=y\implies \boxed{4=y}\)
Pls figure out the intercepts
y= 10x −32
x intercepts: (___, ___)
y intercepts: (___,___)
pls help
Answer:
X intercepts: (0,12)
Y intercepts: (-32,88)
A study was conducted to see if students from public high schools were more likely to attend public colleges compared to students from private high schools. Of a random sample of 100 students from public high schools, 60 were planning to attend a public college. Of a random sample of 100 students from private high schools, 50 of them planned to attend a public college. What are the two independent samples in this study? The students at public high schools and the students at private high schools. Public college or non-public college. Public and private high schools The students at public colleges and the students at private colleges
This comparison can provide insights into potential disparities in college choices based on the type of high school attended.
The students from public high schools and private high schools are the two independent samples in this study. The goal of the study is to compare how likely these two groups are to attend public colleges.
The principal test comprises of 100 understudies haphazardly chose from public secondary schools. Out of this example, 60 understudies were intending to go to a public school. The second sample consists of 50 students who planned to attend a public college out of a total of 100 students who were selected at random from private high schools.
By contrasting the extents of understudies arranging with go to public universities in each example, the review tries to decide whether there is a tremendous distinction in the probability of going to public universities between understudies from public secondary schools and those from private secondary schools. Based on the type of high school attended, this comparison may provide insight into potential disparities in college choices.
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What is the height of a triangle
A-the distance from the base to the highest point
B-the length of the longest side
C- the length of the base
D- the distance from any one side of the triangle to another
whats fhis ill give brainliest
Answer:
12, -24
Step-by-step explanation:
Because when x,y is 12,24. If it is negative y, the equation comes out, like 12, -24
A student begins to build a model of a downtown bridge in the city where he lives. He
measures some of the angles formed by the sides of the model.
The student says both x and y are 65. Why is he incorrect? Use the drop-down menus t
explain your answer.
Considering supplementary angles, we have that the measures of x and y are given as follows:
x = 50º.y = 80º.We also have that x and y have different measures, hence the student is incorrect, and x and 40º are complementary.
What are supplementary angles?Supplementary angles are angles whose measures add to 180º.
The three internal angles of a triangle are supplementary, hence we can find x as follows:
90 + 40 + x = 180
130 + x = 180
x = 50º.
Angles x, y and 50º are also supplementary, hence:
x + y + 50 = 180
50 + y + 50 = 180
y = 80º.
The angles with measures x and 40º are complementary, as they add to 90º.
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Answer:
sum up to 130 but not equal
Step-by-step explanation:
Q11) kelly puts $350 in a savings account. the savings account accrues interest at a flat rate of 1.05% a month. how much will the account be worth in 7 months ?
The account be worth in 7 months is 375.725 .
What is the amount in simple interest?Amount (A) is the total money paid back at the end of the time period for which it was borrowed. The total amount formula in case of simple interest can also be written as: A = P(1 + RT)
Here, A = Total amount after the given time period.
Given that,
P = $350, R = 1.05%, T = 7 month
The simple interest equation uses "t" as years, but is just cycles, using an APR rate.
now, if we never mind "t" as years and just use it as an interest cycle, then we can say the rate is 1.05% and the period is 7 cycles.
A = P(1 + RT)
= 350(1+1.05%×7)
= 350(1+0.0105×7)
= 350(1+0.0735)
= 350×1.0735
A = $375.725
Hence, The account be worth in 7 months is 375.725 .
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Solve for x:
-19= - 4x+1 - 6x
Answer: x = 19/189
Step-by-step explanation:
Add the same term to both sides of the equation
Simplify
Multiply all terms by the same value to eliminate fraction denominators
Simplify
Divide both sides of the equation by the same term
Simplify
use the diagram to find each measure. please justify your solution with a postulate or theorem
Answer:
pandas
Step-by-step explanation:
For one journey from London to Marseille, the ratio number of adults: number of children = 11: 2. There were 220 adults in total on this journey. All of the children and 70% of the adults paid the standard fare. The remaining adults paid the premier fare. Calculate the total of the fares paid by the adults and the children.
Answer: 174
Step-by-step explanation: ok so we divide 220 by 11 to get 20 and times that by two to get 20 children on this journey then see that all children paid and 70 percent of adults so 70 percent of 220 is 154 and then 154 + 20 is 174 so thats the number of fares paid
if danielle still drove 24 miles on the eight day how many miles would tim need to drive to make the median amount of miles that tim and danielle drove the same?
Answer:
the answer would be she would drive 192 miles
how many people who attended the concert live closer than 50 miles from the venue and spent more than 60 dollars
Given that 3/5 of the people who attended the concert live closer than 50 miles from the venue, we can find the total number of people who live closer than 50 miles by multiplying 3/5 with the total number of people who attended the concert:
Total number of people who live closer than 50 miles = 3/5 x 4800 = 2880
We are also given that 0.3 of the people who live closer than 50 miles from the venue spent more than $560 per ticket. To find the number of people who attended the concert and live closer than 50 miles from the venue and spent more than $560 per ticket, we can multiply the total number of people who live closer than 50 miles by 0.3:
Number of people who attended the concert and live closer than 50 miles from the venue and spent more than $560 per ticket = 0.3 x 2880 = 864
Therefore, 864 people who attended the concert live closer than 50 miles from the venue and spent more than $560 per ticket.
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Please HEEEEEEEEEEEEEEEEEEEEELP
Answer:
I believe it's 0.7%.
Step-by-step explanation:
Now change matrix B to a 3 x 3 matrix and enter these values for B:
B =
1.2 1.4 3.1
2.2 1.1 5.6
3.7 4.2 6.7
Then select A • B to calculate the product:
77 39 −33
1.2 1.4 3.1
2.2 1.1 5.6
3.7 4.2 6.7
=
c11 c12 c13
c11 =
c12 =
c13 =
Answer:
Step-by-step explanation:
56.1,12.1,23.6
In Need OF HELP !!!!!!!!
The area of the surface of the swimming pool is 210 square feet. what is the length of the deep end?
The length of the deep end is 12 feet of the swimming pool.
Given: Area of the swimming pool is 210 square feet
Width of the pool = 10 feet
The length of the shallow end is 9 feet and the length of the deep end is d.
To find the value of d.
Let's solve the problem.
The area of the swimming pool is 210
The width is 10
The deep end length is d
The shallow end length is 9
The total length of the swimming pool = The length of the deep end + The length of the shallow end
=> d + 9
Therefore, the total length of the swimming pool is d + 9
The surface of the swimming pool is rectangular, so
The area of rectangle = width × length
Therefore,
area of swimming pool = width of the pool × length of the swimming pool
=> 210 = 10 × (9 + d)
or 10 × (9 + d) = 210
Dividing both sides by 10:
10 × (9 + d) / 10 = 210 / 10
9 + d = 21
Subtracting 9 on both sides:
9 + d - 9 = 21 - 9
d = 12
Therefore the length of the deep end is 12 feet
Hence the length of the deep end is 12 feet of the swimming pool.
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The length of the deep end of the swimming pool is 12 feet.
We are given that:
The Area of the swimming pool = 210 square feet
width of the swimming pool = 10 feet
Length of shallow end = 9 feet
Let the length of the deep end be d.
Total length of the swimming pool = length of deep end + length of shallow end = d + 9
Area of swimming pool = width × length
Substituting the values, we get that:
210 = 10 × (9 + d)
9 + d = 21
d = 12
Therefore the length of the deep end of the swimming pool is 12 feet.
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simplify $((5p 1)-2p\cdot4)(3) (4-1\div3)(6p-9)$ to a much simpler expression of the form $ap-b$ , where $a$ and $b$ are positive integers.
The simplified expression is\($-11p^2-8p+\frac{7}{3}$, where $a=-11$ and $b=\frac{7}{3}$.\)
To simplify the given expression, let's break it down step by step.
Step 1: Simplify the expressions inside the parentheses:
\($((5p+1)-2p\cdot4)(3)(4-1\div3)(6p-9)$$=(5p+1-8p)(3)(4-\frac{1}{3})(6p-9)$$=(-3p+1)(3)(\frac{11}{3})(6p-9)$\)
Step 2: Simplify the expression in the first set of parentheses:
\($=(-3p+1)(\frac{11}{3})(6p-9)$\\\)
Step 3: Expand the expression using the distributive property:
\($=-\frac{33}{3}p^2+11p+6p-\frac{11}{3}-18p+6$\)
Step 4: Combine like terms:
\($=-11p^2-8p+\frac{7}{3}$\\\)
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Patrick won a sweepstakes and will receive money each week for 52 weeks. The first week he will receive $10. Every week after that he will receive 10% more than he got the previous week. How much money did he receive over the 52 weeks?
Patrick received a total of approximately $6,785.97 over the course of 52 weeks.
To calculate the total amount of money Patrick received over the 52 weeks, we can use the concept of a geometric sequence. The first term of the sequence is $10, and each subsequent term is 10% more than the previous term.
To find the sum of a geometric sequence, we can use the formula:
Sn = a * (r^n - 1) / (r - 1),
where Sn is the sum of the first n terms, a is the first term, r is the common ratio, and n is the number of terms.
In this case, a = $10, r = 1 + 10% = 1.1 (common ratio), and n = 52 (number of weeks).
Plugging these values into the formula, we can calculate the sum of the sequence:
S52 = 10 * (1.1^52 - 1) / (1.1 - 1)
After evaluating this expression, we find that Patrick received approximately $6,785.97 over the 52 weeks.
As a result, Patrick collected about $6,785.97 in total over the course of 52 weeks.
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For what values of c does the quadratic equation x^2-2x+c=0 have no real roots?
Answer:
c > 1
Step-by-step explanation:
For a quadratic equation of the form ax^2 + bx + c = 0 to have no real roots, its discriminant (b^2 - 4ac) must be negative.
In the given quadratic equation, a = 1, b = -2, and c = c. So the discriminant is:
b^2 - 4ac = (-2)^2 - 4(1)(c) = 4 - 4c
For the equation to have no real roots, we need:
b^2 - 4ac < 0
4 - 4c < 0
Solving for c, we get:
4c > 4
c > 1
Therefore, for c > 1, the quadratic equation x^2 - 2x + c = 0 has no real roots.
Answer:
C<1
Step-by-step explanation:
Im pretty sure
name the square root of 18ab and of 3bc
Answer:
6 to the power 1/2 to the power 1/2 whereas3bc= 3 to the power 1/2 b to the power 1/2 c to the power 1/2The radius of a circle is 1 kilometer. What is the circle's area?
Use 3.14 for .
square kilometers
Answer:
3.14 km
Step-by-step explanation:
we know that area of a circle is πr², where r is the radius
if here radius is 1 kilometres, π is 3.14
then, circle's area = 3.14 * 1 * 1 = 3.14 km
No matter what size a circle is, it's always going to be 3.14. It's always going to be that because if you have a string that can wrap around the circle, it's going to always be turned out to be 3.14.
R = 1/2
Diameter = 1
Wrap the diameter around and you'll get 3.14.
The temperature falls from 0 degrees to -12 degrees in 3 hours. Which expression finds the change in
temperature per hour?
7 49
24
49.7
49 7
Answer:
Step-by-step explanation:
The change in temperature over the three hours is -12 - 0 = -12 degrees. To find the change in temperature per hour, divide the total change by the number of hours:
-12 / 3 = -4 degrees per hour
So, the change in temperature per hour is -4 degrees. The answer is -4.
The z-score associated with the 97.5 percent confidence interval is a) 2.160 b) 1.900 c) 2.241 d) 2.744 e) 1.960 f)None of the above
In this question, the z-score associated with the 97.5 percent confidence interval is option e) 1.960.
In statistics, the z-score is used to determine the number of standard deviations a particular value is away from the mean in a normal distribution. The z-score is commonly used in confidence interval calculations, where it corresponds to a certain level of confidence.
The 97.5 percent confidence interval corresponds to a two-tailed test, meaning we need to find the z-score that captures 97.5 percent of the area under the normal distribution curve, with 2.5 percent of the area in each tail.
Looking up the z-score in a standard normal distribution table or using statistical software, we find that the z-score associated with the 97.5 percent confidence interval is approximately 1.960.
Therefore, the correct answer is e) 1.960. This z-score is used when constructing a 97.5 percent confidence interval, which means there is a 97.5 percent probability that the true population parameter lies within the interval calculated using this z-score.
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(BRAINLIEST TO THE PERSON WHO HELPS ME WITH THESE THREE QUESTIONS)
Cheryl writes 7 fewer posts than Kevin on a social media site.
Answer the questions to write an algebraic expression. Then evaluate the expression for the given value.
1. Choose a variable to represent the number of posts Kevin writes. Explain why you chose this variable.
2. Which operation (addition, subtraction, multiplication, or division) applies to this situation? Justify your choice.
3. Use your variable and the operation you identified to write an expression for the number of posts Cheryl wrote.
Answer:
Cheryl's posts + 7 posts =Kevin Posts
K-C=7 or C+7+K I use them because C is Cheryl and K is Kevin
Operation=subtraction or addition because it could be K-C=7 or C+7+K
Cheryl wrote K-7=C posts
Answer:
Cheryl writes 7 fewer posts than Kevin on a social media site.
Answer the questions to write an algebraic expression. Then evaluate the expression for the given value.
1. Choose a variable to represent the number of posts Kevin writes. Explain why you chose this variable. (2 points)
The expression will be P for "of posts Kevin writes."
2. Which operation (addition, subtraction, multiplication, or division) applies to this situation? Justify your choice. (2 points)
The operation I will use is subtraction so P-7.
3. Use your variable and the operation you identified to write an expression for the number of posts Cheryl wrote. (3 points)
Subtraction would be the operation and my expression would be ( P-7 ) which would also be ( 21 - 7 )
a grain silo consists of a cylindrical main section and a hemispherical roof of the total volume of the silo (including the part inside the roof section) is 10,000 find.the.cylindrical part is 30 ft tall, what is the radius of the silo, correct to the nearest tenth of a foot?
The radius of the silo which is in the shape of cylinders and spheres , correct to the nearest tenth of a foot, is approximately 10.3 feet.
To find the radius of the silo, we need to determine the radius of the cylindrical section.
The volume of the cylindrical section can be calculated using the formula:
\(V_{cylinder} = \pi * r^2 * h\)
where \(V_{cylinder}\) is the volume of the cylindrical section, r is the radius of the cylindrical section, and h is the height of the cylindrical section.
Given that the cylindrical section is 30 ft tall, we can rewrite the formula as:
\(V_{cylinder} = \pi * r^2 * 30\)
To find the radius, we can rearrange the formula:
\(r^2 = V_{cylinder} / (\pi * 30)\)
Now, we can substitute the total volume of the silo, which is 10,000 cubic feet, and solve for the radius:
\(r^2 = 10,000 / (\pi * 30)\)
Simplifying further:
\(r^2 = 106.103\)
Taking the square root of both sides, we find:
\(r = \sqrt{106.103} = 10.3\)
Therefore, the radius of the silo which is in the shape of cylinders and spheres , correct to the nearest tenth of a foot, is approximately 10.3 feet.
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