Julie started with 20 pieces of gum and gave away x pieces. Conrad started with 35 pieces of gum and gave away twice as many pieces as Julie did.

Question

How many pieces of gum did Julie give away if they had the same number of pieces of gum left?

Question 1 options:

18

5

15

8

Question 2 (1 point)
Aquarium I contains 4.6 gallons of water. Louise will begin filling Aquarium I at a rate of 1.2 gallons per minute.

Aquarium II contains 54.6 gallons of water. Isaac will begin draining Aquarium II at a rate of 0.8 gallon per minute.

After how many minutes will both aquariums contain the same amount of water?

Question 2 options:

148 Minutes

125 Minutes

25 Minutes

50 Minutes

Question 3 (1 point)
Jerry has a new job and earns a salary of $45,000. Victoria has a new job and earns a salary of $54,000. Jerry will receive a salary increase of $2,500 per year, and Victoria will receive a salary increase of $1,500 per year.

Which equation can be used to find x, the number of years it will take Jerry to earn the same salary as Victoria?

Question 3 options:

45,000x + 2,500x = 54,000x + 1,500x

45,000x + 2,500 = 54,000x + 1,500

45,000 + 2,500x = 54,000 + 1,500x

45,000x + 2,500x = 54,000x + 1,500

Answer 1

The correct answers are:

Question 1: x = 10 (Julie gave away 10 pieces of gum)
Question 2: 50 Minutes (both aquariums will contain the same amount of water after 50 minutes)
Question 3: 45,000 + 2,500x = 54,000 + 1,500x (equation to find x, the number of years it will take Jerry to earn the same salary as Victoria)