Question

The average time it takes to manufacture a car in the United States is equal to the average time it takes to manufacture a car in Japan plus 8.1 hours. The average time it takes to manufacture a car in the United States is 24.9 hours

Answer 1

I'm kind of out of it today. Don't know if it is l+8.1=24.9 or l-8.1=24.9...

Answer 2

there's no question here, just a collection of statements lol

Answer 3

Oh, I want to know how to write in an expression...

Answer 4

oh, ok:
Let U=average USA time
Let J=average Japan time
then,
U=J+8.1
but U is given as U=24.9 hours
So,
24.9=J+8.1
J=16.8 hours