Equivalent Equations & Word Problems

A number is increased by 8 and then multiplied by 3. If the result is 45, what is the original number?

• 20

• 5

• 7

• 13

Tags

CCSS.7.EE.B.4A

The sum of two consecutive even numbers is 86. Find the numbers.

• 42 and 44

• 38 and 48

• 36 and 50

• 40 and 46

Tags

CCSS.8.EE.C.7B

The difference between two numbers is 12. If the larger number is 3 times the smaller number, find the numbers.

• 4 and 16

• 8 and 20

• 6 and 18

• 10 and 22

Tags

CCSS.8.EE.C.8C

Marquis has $150 in his savings account and saves $40 per month. Which of the following equations would be accurate if Bob has saved $400?

• 400 = 150 + 40

• 400 = 150 + 40x

• 400 = 150x + 40

Tags

CCSS.HSA.CED.A.3

Jerry has $20 and makes $7 per hour mowing lawns. By the end of the day Jerry has $62. How many hours did Jerry work today?

• 6 hours

• 7 hours

• 8 hours

• 9 hours

Tags

CCSS.7.EE.B.4A

A man is climbing down from 250 feet high. He jumps 40 feet down and then descends at a rate of 30 feet per minute. How many minutes did it take him to reach the ground?

• 5 minutes

• 7 minutes

• 8 minutes

• 11 minutes

An internet company charges a $100 set up fee, and then they charge $35 a month after that. If Bobbie paid $415 for internet so far this year, how many months has she been paying?

• 7 months

• 8 months

• 9 months

• 10 months

Tags

CCSS.7.EE.B.4A

At Joe's Clown Car Rental Agency, renting a car costs a one time fee of $35 plus $0.75 for every mile it is driven. Which of the equations below would be the correct if it costs Melissa $105 to rent a car?

• 105 = x(35 + 0.75)

• 105 = 35x + 0.75

• 105 = 0.75x + 35

• 105 = 0.75(x + 35)

Tags

CCSS.HSA.CED.A.3

The Roaming Cell Phone Company charges $15.00 per month plus $0.20 per minute of airtime usage. If Tara's cell phone bill is $75, how many minutes did she talk on the phone?

• 30 minutes

• 60 minutes

• 250 minutes

• 300 minutes

Tags

CCSS.7.EE.B.4A

A plant is 5cm tall and growing at a rate of 3cm a month. How many months would it take for the plant to reach 23 cm?

• 2 months

• 5 months

• 6 months

• 7 months

Tags

CCSS.7.EE.B.4A