Question

The equation 9(u – 2) + 1.5u = 8.25 models the total miles Michael traveled one afternoon while sledding, where u equals the number of hours walking up a hill and (u – 2) equals the number of hours sledding down the hill. Which is the value of u?

Answer 1

i just passed the test and it's 2.5 hope this help

Answer 2

Answer:

The value of u is 2.5.

Step-by-step explanation:

Given : The equation $9(u-2) + 1.5u= 8.25$ models the total miles Michael traveled one afternoon while sledding, where u equals the number of hours walking up a hill and (u-2) equals the number of hours sledding down the hill.

To find : What is the value of u?

Solution :

To get the values of u we solve the equation,

$9(u-2) + 1.5u= 8.25$

Open the bracket,

$9u-18+ 1.5u= 8.25$

$9u+1.5u= 8.25+18$

$10.5u= 26.25$

$u=\frac{26.25}{10.5}$

$u=2.5$

Therefore, The value of u is 2.5.