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Aleonysh [2.5K]
4 years ago
5

The percentage score on a test varies directly as the number of correct responses. Stan answered 29 questions correctly and earn

ed a score of 87. What would Stan's percentage score have been if he had answered 25 questions correctly?
Mathematics
1 answer:
DiKsa [7]4 years ago
7 0
87 / 29 = x / 25.....score 87 to 29 answers = score x to 25 answers
cross multiply because this is a proportion
(29)(x) = (25)(87)
29x = 2175
x = 2175/29
x = 75 <=== Stan's percentage score when answering 25 q's correctly
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jenna has a piece of paper that is 84 square inches in area. it is 10 1/2 inches long. what is the length of the piece of paper
skad [1K]
Here is the solution based on the given problem above.
Given: Area of the piece of paper = 84 square inches
           Width = 10 1/2 or 10.5 inches long
           ? = length of the piece of paper
To find the area of an object, the formula would be A= L x W
Now, let's substitute the given values above
84in2 = L(10.5in)
Now, divide both sides with 10.5 and we get 8.
L = 8 inches.
Therefore, the length of the paper is 8 inches. 
Hope this solution helps. 
4 0
3 years ago
Write a numerical expression with<br> exponents to describe the sum of 3x3x<br> 3 x 3 and 36.
Sergio [31]

Answer:

3 to the power of 4

Step-by-step explanation:

you set the exponent to the amount of times 3 is being multiplied by

5 0
3 years ago
Miguel had $500 in his checking account at the beginning of the month. He made a deposit of $134.50 and $55.50. He wrote a check
fgiga [73]

Answer:$570

Step-by-step explanation:

At beginning he had 500

He deposited =134.50+55.50=190.00

Total in account is 190+500=690

He withdrew =64.50+55.50=120.0

Total in account =690-120=$570

3 0
3 years ago
HURRY I'LL PICK A BRAINLIEST PERSON!!!!
german
The two correct answers are A and E. You can immediately eliminate C and E because to bring over something that is multiplied you have to divide (fraction). And B isn't the answer because to isolate s you divide by πr which would bring <span>πr to the denominator, not the numerator.
Hope this </span>helps!

5 0
3 years ago
Read 2 more answers
Two consecutive numbers total 25. Find the numbers.
velikii [3]
First number  is x.
Second number is (x+1).
Their sum is (x+x+1)=(2x+1)

2x+1=25
2x=25-1
2x=24
x=12
x+1=13

Numbers are 12 and 13.
5 0
3 years ago
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