55.04 is what percent of 21.5

Mathematics

2 answers:

satela [25.4K]2 years ago

5 0

256% is definitely the answer

Nikolay [14]2 years ago

4 0

55.04 is 256% of 21.5
Hope it helps and hope its right...---

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Among all the rectangles whose perimeters are 100 feet, find the dimensions of the one with the maximum area. explain step by st

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We let x be the length and y be the width of the rectangle. Then,

Perimeter = 2x + 2y
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50 = x + y
y = 50 - x

Area = xy
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A = 50x - x^2

We then take the derivative; set it equal to zero:

A ' = 50 - 2x
0 = 50 - 2x
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Answer:

The grade you make on your exam varies directly with the number of correct answers. The constant of variation is 5

Solution:

Given, The grade you make on your exam varies directly with the number of correct answers you get on the exam.

Answering 15 questions correctly will give you a grade of 75 what is the.

We have to find what is the Constant of variation.

Now, according to the given information, grade  number of correct answer

Then, grade = c x number of correct answers, where c is constant of variation.

Now, substitute grade = 75 and number of correct answers = 15

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Then add 8 to both sides.
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3 years ago

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