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Glencoe Math: Course 2, Volume 1

GM

Glencoe Math: Course 2, Volume 1 View details

2. Percent and Estimation

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Exercise 33 Page 118

Use the Division Property of Equality to eliminate the multiplication.

a=300

Practice makes perfect

We are given the following equation. 1200=4a To solve the equation, we have to isolate a on one side. Using the Division Property of Equality, we will divide both sides of the equation by 4. This will eliminate the coefficient on the left-hand side of the equation and isolate n. Let's do it!

1200=4a

.LHS /4.=.RHS /4.

1200/4=4a/4

CancelCommonFac

Cancel out common factors

1200/4=4a/4

Simplify quotient

1200/4=a

Calculate quotient

300=a

Rearrange equation

a=300

We found that a=300 is a solution to the equation.

Subchapter links

Guided Practice p.114

Independent Practice p.115-116

H.O.T. Problems p.116

Standardized Test Practice p.116-118

Extra Practice p.117

Common Core Review p.118