Solving for an Unknown Variable

Eric is making chocolate chip cookies. He started with 23 chocolate chips. Using the picture as a reference, how many chocolate chips are In the cookie?

There are a total of 20 blueberries. Pancake batter has covered up some of the blueberries. Each pancake has the same number of blueberries in it. How many blueberries does each pancake have?

3B + 8 = 20

Blueberry Pancakes

Youth Group Trip

The youth group is going on trip to an amusement park in another part of the state. The trip costs each group member of the group $150, which includes $85 for the hotel and two one-day combination entrance and meal plan passes. How much does each park pass cost?

I’m SOOOOO Thirsty!

Suppose you want to buy your favorite ice cram bar while you at the amusement park and it costs $2.89. if you purchase the ice cream and 3 bottles of water, and pay with a $10 bill and receive no change, then how much did each bottle of water cost?

Part-Time Jobs

Eric’s father works two part-time jobs; one in the morning, and one in the afternoon, and works a total of 40 hours each 5-day work week. If his schedule is the same each day and he works 3 hours each morning, how many hours does Eric’s father work each afternoon?

Building a Bookcase

Henry is making a bookcase and has a total of 16 feet of lumber. The left and right sides of the bookcase are each 4 feet high. The top, bottom and two shelves are all the same length. How long is each shelf?

Too Many Students!

• A class of 50 students is divided into two groups; one group has eight less than the other; how many are in each group?

Jane Has a Shopping Problem

• Jane spent $42 for shoes. This was $14 less than twice what she spent for a blouse. How much was the blouse?