Glencoe Math: Course 2, Volume 1
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Glencoe Math: Course 2, Volume 1 View details
4. The Percent Equation
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Exercise 4 Page 133

To solve problems that involve percent, use the percent equation.

Equation: p = 0.39* 65
Solution: p ≈ 25.4

Practice makes perfect

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 39 % of 65, which means that we want to find the part. Let p represent the part. p = 39 % * 65 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.

percent as decimal: 0.39

We got that 39 % is equal to 0.39. p = 39 % * 65 [0.3em] ↓ [0.3em] p = 0.39 * 65 Finally, let's solve the equation for p.

p = 0.39 * 65
p = 25.35
p≈ 25.4

We found that p≈ 25.4 is a solution to the equation. This means that 39 % of 65 is equal to about 25.4.