Mary is three times older than seth is. if their ages total 76, how old is mary. Please answer ASAP

Mathematics

1 answer:

DedPeter [7]3 years ago

5 0

Mary = 3x

Seth = X

If we know that Mary is three times older than Seth, we can set this up into an equation.

3x + x = 76

Now, we can simplify on the left side by adding the Xs together.

4x = 76

X = 19

Therefore, Seth is 19 years old and Mary is 57 years old.

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The function(t)--4.87+18.75 is used to model the height of an object projected in the air, where h() is the height in

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The domain and range of the given function are equal to (0, 3.85) and (0, 18.75) respectively.

<h3>How to calculate the domain of the function?</h3>

In this exercise, you're given the following function h(t) = -4.87t² + 18.75t. Next, we would equate the function to zero (0) to determine its domain as follows:

0= -4.87t² + 18.75t.

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<h3>How to calculate the range of the function?</h3>

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Read more on domain here: brainly.com/question/17003159

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