Q43. - Algebra 1

Question

The average time t it takes to manufacture a car in the United States is 24.9 hours. This is 8.1 hours longer than the average time it takes to manufacture a car in Japan. Write and solve an equation to find the average time in Japan.

Step-by-Step Solution

Answer

The average time to manufacture a car in Japan is 16.8 hours.

Step 1. Write the given information.

The average time taken to manufacture a car in the United States is 24.9 hours.

The average time taken to manufacture a car in the United States is 8.1 hours more than that in Japan.

Step 2. Assumption.

Let x  be the average time taken to manufacture a car in Japan.

To get x, we will subtract 8.1 from 24.9.

Step 3. Calculation.

$\begin{array}{l}x=24.9-8.1\\ x=16.8\text{ hours}\end{array}$

Thus, the average time to manufacture a car in Japan is 16.8 hours.