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andriy [413]
2 years ago
13

Help pleaseeeeeeee!!!

Mathematics
1 answer:
Kamila [148]2 years ago
6 0

Answer:

B or the second option

Step-by-step explanation:

the rules of math state that you must not have a square root in the denominator so in order to get rid of it multiply the top and bottom by the square root on the bottom. Any square root times itself takes away the square root symbol

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Sasha has 3.20 in U.S. coins. She has the same number of quarters and nickels. What is the greatest number of quarters she could
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Answer:

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Step-by-step explanation:

First, suppose she has only quarters and nickels and no other coins.  Then if C is the identical number of coins of each type, then 5C + 25C = 320, so 30C = 320 and 3C = 32, but there is no integer solution to this.  So she must have at least one other type of coin.

Assume she has only quarters, nickels, and dimes.  Then if D is the number of dimes, 5C +  25C + 10D = 320, which means 30C + 10D = 320, or 3C + D = 32.  The smallest D can be is 2, leaving 3C = 30 and thus C = 10.  So in this scenario she would have 10 quarters, 10 nickels, and two dimes to make $2.50 + $0.50 + $0.20 = $3.20.

This has to be the highest number, because if she had 11 quarters and 11 nickels, that alone would add up to 11(0.25) + 11(0.05) = $3.30, which would already be too much.

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Step-by-step explanation:

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Read more on Brainly.com - brainly.com/question/1411682#readmore

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