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3 years ago

Chris's age is 17 more than one-fourth of Brian's age. How old is Chris if Brian is 27?

Mathematics

1 answer:

dedylja [7]3 years ago

6 0

Answer:

23.75

Step-by-step explanation:

Given that:

Brian's age = 27

Age of Chris is 17 more than one - fourth of Brian's age.

To find:

Age of Chris = ?

Solution:

Let age of Chris = $x$

One - fourth of Brian's age = $\frac{27}{4}$

17 more than One - fourth of Brian's age = $\frac{27}{4}$ + 17

Therefore, we can write the equation as per question statement:

$x = \frac{27}{4} + 17\\\Rightarrow x = 6.75+17\\\Rightarrow \bold{x = 23.75}$

Therefore, Chris is 23.75 years old if Brian is 27.

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Answer:

The equation for regression line and predicting a husband's height for married couples in their early 20s

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so the slope of the regression line is the linear correlation coefficient multiplied by the standard deviation for y' divided by the standard deviation for x'

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