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Semenov [28]
3 years ago
6

Kevin is twice as old as his sister Amy their father is five times as old as Amy if the sum of the ages is 64 how old is Amy

Mathematics
1 answer:
Sauron [17]3 years ago
6 0

Answer:

8 years old

Step-by-step explanation:

Set Amy's age as x.

Kevin's age will be 2x, since he is two times as old as Amy.

Father's age will be 5x, since he is five times as old as Amy.

x + 2x + 5x = Sum of the ages = 64

x + 2x + 5x = 64

Combine like terms: 8x = 64.

Divide 8 on both sides: x = 8.

Amy's age = 8.

Hope this helps!

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Have a nice day :)
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<h2>Answer and Explanation:</h2><h2 />

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From the problem, a student is trying to calculate the density of a ball. She already knows the mass, but is facing a problem because she also needs to find the volume. From geometry, we know that the volume of a sphere is:

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Using the <u>Central Limit Theorem</u>, the statement is false, as for the averages of  the data values for a sample group, the standard error is s = \frac{\sigma}{\sqrt{n}}, hence, the formula is:

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In a normal distribution with mean and standard deviation , the z-score of a measure X is given by:

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A similar problem is given at brainly.com/question/24663213

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