Exercise 7 Page 140

Let's start by recalling that we can use the percent equation to solve problems that involve percent. Percent Equation [0.3em] part = percent * whole In this case, we are asked to find 35 % of 72, which means that we want to find the part. Let p represent the part. p = 35 % * 72 Before we can solve the equation that we got, we need to write the percent as a decimal. We can write a percent as a decimal by ignoring the percent symbol and moving the decimal point two places to the left.

We got that 35 % is equal to 0.35. p = 35 % * 72 [0.3em] ↓ [0.3em] p = 0.35 * 72 Finally, let's solve the equation for p.

We found that p= 25.2 is a solution to the equation. This means that 35 % of 72 is equal to 25.2.