The average time
it takes to manufacture a car in the United States is
.
This is
s longer than the average time it takes to manufacture a car in Japan.
Write and solve an equation.
\Let
represent the average time to manufacture a car in japan.
The time to manufacturer a car in the United States
plus to the manufacture a car in Japan.
The equation is
.
Find the average time in Japan.
\
(Orginal equation)
(Subtract
from each side)
(Apply additive inverse property :
)
Therefore, the average time to manufacture a car in japan is
.
The equation is
.
The average time to manufacture a car in japan is
.