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?
A: u = 0.25
B: u = 0.75
C: u = 1.1
D: u = 2.5

Answer 1

Answer:

Solution; u = 2.5

Step-by-step explanation:

We can neglect the information provided to us, besides that of the equation 9(u – 2) + 1.5u = 8.25, as we are only to find the value of u, any other information is not of need;

9(u – 2) + 1.5u = 8.25 ⇒ apply the distributive property on the expression ( u - 2 ), distributing the 9 to the elements inside,

9u - 18 + 1.5u = 8.25 ⇒ add like elements,

10.5u = 26.25, solve for u,

Solution; u = 2.5

Answer 2

Answer:

D

Step-by-step explanation:

reason