Question

The number 66 is increased to 72. What is the percentage by which the number was increased, to the nearest tenth of a percent?

Answer 1

The increase is 9.1%

Explanation:

Step 1: Make an equation

`66 * x = 72`

`66x = 72`

Step 2: Divide both sides by 66

`66x / 66 = 72 / 66`

`x = 1.09090`

Step 3: Find the increased

`1 - 1.09090`

`0.091 * 100`

9.1%

Answer: The increase is 9.1%