ALGEBRA REVIEW March 2013

#1Jay mows lawns and washes cars to earn money. He earns $8 for each lawn he mows. He earns $5 for each car he washes. On Friday, he mowed 3 lawns and washed 3

cars. On Saturday, he spent $15 of the money he

earned. Which expression shows the amount of money Jayhad left.?

A) 3 x 8 + 5) — 15 B) 3 x (8 + 5) — 15 C) (3 + 8 + 5) — 15 D) (8 + 5) — 15 x 3

#8

Gavin took 2 packs of colored pencils to school. He had a total of 26 colored pencils. One pack contained 6 fewer pencils than the other. Which expression shows how to find the number of pencils in the smaller pack?

A) (26 2) – 6B) (26 2) + 6 C) (26 – 6) 2D) (26 – 6) x 2

EXAMPLES

(5 x 7) + (5 x 9) can be written 5 x (7 + 9)

(4 x 3) + (4 x 5) + (4 x 8) can be

written 4 (3 + 5 + 8)

#2

Which mathematical expression is equivalent to the number sentence below?

Subtract 15 from 45, and then divide by 3

A) 15 — 45 3B) (45—15) 3C) (15—45) 3D) 3 (45—15)

#3

The Quotient of 10 and x is 6

A)10x = 6 B)10 6 = x C) 1x + 10 = 6 D)10 x = 6

#4

Ninety-nine is three times a number minus 1

A) 99 = 3 + x – 1 B) 99 = 1 – (3) C) 99 = 3x + 1 D) 99 = 3x – 1

#5

The quotient of twenty and five more than a number is seventeen.

A) 20 = 17 x + 5B) 20 x = 17

C) 5 + 20 x = 17D) 20 = 17 5x

#6

The quotient of two numbers is equal to the sum of those numbers.

A) x + y = z y B) x y = x – y C) x y = x y D) x y = x + y

#7

Claudia’s car averages 24 miles per gallon of gasoline. If she drives n miles, how many gallons does she use?

A) n + 24B) n – 24C) n x 24D) n 24

#8

Gavin took 2 packs of colored pencils to school. He had a total of 26 colored pencils. One pack contained 6 fewer pencils tan the other. Which expression shows how to find the number of pencils in the smaller pack?

A. (26 2) – 6B. (26 2) + 6C. (26 – 6) 2D. (26 – 6) x 2

#9

Shane has a $1-coupon for a box of cereal priced $3.00. It is double coupon day at the grocery store. Shane gets double the value of his coupon. Which expression shows how much Shane will pay for the box of cereal?

A. (3 – 2) x 1B. 3 – (2 x 1)C. (3 – 1) x 2 D. 3 – (2 + 1)

#10

A printer prints 12 pages per minute. Which will determine the total number of pages that can be printed by 3 printers in an hour?

A. (12 x 3) x 60 B. 12 + 3 + 60C. (12 + 3) x 60 D. 12 x 3 + 60