Question

If twelve inches correspond to 30.48 centimeters, how many centimeters are there in thirty inches

Answer 1

There are 76.2 cm in 30 inches

Explanation:

We can use proportions to solve this problem

12 inches 30 inches

----------------- = ------------

30.48 cm x cm

Using cross products

12 * x = 30 * 30.48

12 x = 914.4

Divide by 12

12x/12 = 914.4/12

x = 76.2