7 November, 00:41

# Grace earns \$7 for each car she washes. She always saves \$22 of her weekly earnings. This week, she wants to have at least \$63 in spending money. How many cars must she wash? Enter and solve an inequality to represent this situation. Enter your value as a simplified mixed number, if necessary.

+3
1. 7 November, 01:33
0

Step-by-step explanation:

Let the number of cars she'd wash to earn \$63 in spending money be A.

Given she saves \$22 of her weekly earnings and wants to have at least \$63 for spending money.

That means she'd have to make \$63 + \$22 = \$85

The expression is thus

\$85 = A x \$7

Where A is the number of cars and \$7 is the amount she earns for washing one car and \$85 is the total amount she has to make.

Therefore,

85 = A x 7

Divide both sides by 7

85/7 = A x 7/7

12 1/7 = A

A = 12 1/7 cars

She must wash 12 1/7 cars to have at least \$63 spending money and also have her weekly Savings of \$22.
2. 7 November, 02:21
0
12 1/7 cars

Step-by-step explanation:

Let the number of cars she'd wash to earn \$63 in spending money be A.

Given she saves \$22 of her weekly earnings and wants to have at least \$63 for spending money.

That means she'd have to make \$63 + \$22 = \$85

The expression is thus

\$85 = A x \$7

Where A is the number of cars and \$7 is the amount she earns for washing one car and \$85 is the total amount she has to make.

Therefore,

85 = A x 7

Divide both sides by 7

85/7 = A x 7/7

12 1/7 = A

A = 12 1/7 cars

She must wash 12 1/7 cars to have at least \$63 spending money and also have her weekly Savings of \$22