7.2.9 Practice

Solve: m + 8 = -2

• 6

• -6

• 10

• -10

Solve  $4y=-16$  

•  $y=4$  

•  $y=-64$  

•  $y=-\frac{1}{4}$  

•  $y=-4$  

Jose wrote the equation below to find the number of hours he would need to work at $10 an hour to save $300. 10x +  160=  300. According to this equation, how much money did Jose already have saved before he started working? 

• $300
• $160
• $10

A technician charges an initial fee of $300 plus an hourly fee of $60. Mr. Jenks paid the technician $480. How many hours did the technician work?

• 300 = 60x - 480
• 480 = 60x + 300

 A taxi charges $1.75 plus a fee of $0.75 for each mile traveled. The total cost of a ride, without a tip, is $4.75. How many miles is the trip? Use m for the number of miles traveled. 

• 1.75 = .75x + 4.75
• 1.75x +.75 = 4.75
• 4.75 = .75x + 1.75
• 4.75 = .75 + 1.75x

Jim paid a gym membership fee of $50, plus $20 per month.  Jim has paid a total of $290 to the gym.  How many months has Jim been a member of the gym?

• 50 + 20m = 290
• 20 + 50m = 290
• 50 + 20 = m
• 50m - 20 = 290

Ken is thinking of a number. Nine more than the product of 4 and the number is 73. What is the equation?

• 4 + 9x = 73
• 4x = 73
• 4x + 9 = 73
• 9x + 4 = 73

11b+7=40

• 2
• 1
• 4
• 3

3c + 5 = 23

• c = 3
• c = 6
• c = 7
• c = 18

Solve for a.

50 = 28.1 + 0.15a

• a= 150

• a= 146

• a= 6

• a= 155