Module 2 Review Part 1

Which equation represents this sentence?

The sum of 5 times a number m and 12 is equal to 27.

• 
  5m+12=27

• 
  5(m+12)=27

• 
  5+12m=27

• 5(12m)=27

Write a sentence for this equation.

3(t–8)=9

PAPER The length of a piece of paper is 3.5 inches greater than its width.

If the length is 11 inches, which equation can be used to find the width, w?

• w – 3.5=11

• 
  3.5+w=11

• 
  w – 11=3.5

• 
  3.5=11+w

Solve n−8=5 and identify the property of equality used.

• –13; Subtraction Property of Equality

• –3; Addition Property of Equality

• 3; Multiplication Property of Equality

• 13; Addition Property of Equality

Solve z+12= –3

Mathematical Equivalence

ON

Solve ⅕t=10

• 2

• 5

• 15

• 50

RETAIL  The table shows the cost to buy different numbers of T-shirts at a discount store.

Which shows the equation and solution for finding the number of T-shirts that can be bought for $48.00?

• 6t = 48; 8

• 
  6t = 48; 42

• 6 + t = 48; 8

• 6 + t = 48; 42

If 3x – 6=42, what is the value of x?

• 8

• 12

• 16

• 20

Solve 8=11 – 3y

y=

Solve 5 – kx=9 for x. Assume that k≠0.

• x=−14/k

• 
  x=−4/k
  

• x=4/k

• x=14/k