1B Equation and Systems Review 1

In 2010, a tree was 8 feet tall. In 2011 the tree was 14 feet tall. Which equation would be used to find how many feet the tree grew?

• f + 8 = 14

• f - 8 = 14

• f/8 = 14

• 8f=14

Sally bought three candy bars for a total of $18.00. How much did each candy bar cost? Write an equation to solve this problem. Use c as your variable.

• 18c=6
• c + 6= 18
• c +18 = 6
• 3c=18

Nancy won a certain number of pieces of gum playing the bean bag toss at the county fair. At school she gave 21 away to her classmates. She only has 5 remaining. How many did she give away? Write an equation to solve this problem using g as your variable.

• g/21=5
• g-21=5
• g-5=21
• g+5=21

 Nicole and her best friend split the amount of money they earned over the weekend mowing lawns. If each person got $10.93, what is the total amount of money they earned? Which equation could you use to solve this problem?

• 2d=10.93
• d/2=10.93
• d-2=10.93
• d+2=10.93

Jim paid a gym membership fee of $50, plus $20 per month.  Jim has paid a total of $290 to the gym.  Which equation matches this situation?

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

A bag of candy was shared equally among 4 friends.  Each friend gave away 7 pieces of candy.  They each ended up with 8 pieces of candy.  Write an equation to find how much candy was in the bag at the beginning.

• c/7 - 4 = 8
• c/4 + 7 = 8
• 4/c - 7 = 8
• c/4 - 7 = 8

Which equation would describe "two times a number plus five equals 15"?

• x + 5 = 15
• 2x + 5=15
• x + 2(5) = 15
• 2(x + 5) = 15

Terry had his car repaired at Ace Auto.  He was charged $50 per hour of labor plus $150 for parts.  His total bill for the repair before tax was $375.  How many hours of labor was Terry charged for?

• 2.5 hours
• 4.5 hours
• 7.5 hours
• 10.5 hours

Jared made sixty dollars mowing lawns over the summer. If he spent thirty-nine dollars buying new mower blades, how many seven dollar games could he buy with the money he had left?

• 21 games
• 3 games
• 7 games
• 99 games

 A computer printer can print 10 pages per minute. There were already 35 pages in the tray.  The total pages printed was 115 pages. How many minutes has the printer been running?

• 8
• 9
• 7
• 10