Create an Equation

One cell phone plan costs $30 per month plus $0.25 for each text.

Another plan costs $70 per month plus $0.10 for each text.

For what number of text messages will the monthly bill for both plans be the same?

• 30 + 0.25t = 70 + 0.10t

• 30 -0.25t -0.10t = 70

 A computer printer can print 10 pages per minute. There were already 35 pages in the tray.  The total pages printed was 115 pages.  Write an expression for the number of pages the printer can print in m minutes. 

• 10m + 35 = 115

• 10m - 35 = 115

• 115m + 35 = 10

• 35m + 10 = 115

Which Equation Best Represents the Problem below: Rachel is choosing between two cell phone plans. - Cingular charges $40 initial fee, then $0.45 per minute. - Verizon charges $45 initial fee, then $0.40 per minute. How many minutes must be used for the plans to cost the same?

What is the equation of this graph?

• y = - 2/3x + 5

• y = 2/3x + 5

• y = - 5x + 2/3

• y = 5x + 2/3

Write the equation of the line.

• y=-3x-4

• y=-4x-3

• y=(-3/4)x-3

• y=(-4/3)x-3

Alan has a business mowing lawns for $20 per lawn and raking leaves for $0.75 per pile.  His goal is to earn exactly $30 each time he mows a lawn and rakes leaves.  If x represents the number of piles of leaves, which equation models Alan's goal?

• x + 20 = 30

• 75x + 30 = 20

• 0.75x + 20 = 30

• 30x + 20 = 0.75

A mechanic charges $50 per hour plus the cost of materials for a job.  The job cost $160.75 for a small job that included materials worth $60.75  Which equation can be used to find h the number of hours the mechanic worked on the job?

• 60.75h + 50 = 160.75

• 50h + 60.75 = 160.75

• 50h - 60.75 = 160.75

• 2h + 50 = 160.75

• 238,650

• 12

• 6

• 30

• No Solution

• 16

• 8

• 120

Mallory bought pizza and soda for a party. If she spent $12.57 on the sodas and $10.95 for each pizza, how many pizzas did she buy if her total is $89.22?

• 10.95x + 12.57 = 89.22

• 12.57x + 10.95 = 89.22

• 89.22x -10.95 = 12.57

• 12.57 + 10.95 = 89.22