Name: _________________________________________________________ Period: ___________

Expressions and Equations1. Lin is tracking the progress of her plant’s growth. Today the plant is 5 cm high. The plant grows 1.5 cm per day.

______________________ Write an expression that represents the height of the plant after d days.

______________________ What is the height of the plant after 4 days?

Write and solve an equation to calculate when the plant will be 35 cm tall.

Graph your solution:

2. Mr. Thompson is on a diet. He currently weighs 260 pounds. He loses 4 pounds per month.

_________________ Write an expression that represents Mr. Thompson’s weight after m months.

_________________ What is Mr. Thompson’s weight after 4 months?

Write and solve an equation for when Mr. Thompson will weigh 220 pounds.

Graph your solution:

3. A cell phone plan costs $30 per month for unlimited calling plus $0.15 per text message.

____________________ Write an expression that represents the monthly cost of this cell phone plan.

____________________ What would the monthly bill be if 200 text messages were sent?

If your monthly bill was $180, write/solve an equation that shows how many text messages you sent.

Graph your solution:

Instructions: Your assignment is to create a story problem that requires a two-step equation to solve. You must have a variable term, a fixed term and a total amount. Be creative! Include multiplication and addition.

Story:

Two-Step Equation Math Section:

Slides (Thumbnails):

Guided Instructions: Your assignment is to create a story problem that requires a two-step equation to solve. You must have a variable term, a fixed term and a total amount. Be creative!

Story:

One day, _____________________ decided to go to __________________. He/She was so excited! It was going to be a lot of fun. It cost $_____ to get in to the _________________, and $_____ for every _______________. _____________________ only had $________ How many ______________ could he/she __________________?

Two-Step Equation Math Section:

Slides (Thumbnails):

Example Textbook Story:

Dredge, the resident Vampire, is planning to visit his mom for Halloween. He wants to bring a cow back home as a present for his family. The cow cost $2,000. He would also like to give each of his cousins an Egyptian fruit bat. Egyptian fruit bats cost $100 each. If he spends $3,200 on bats and cows, how many cousins does Dredge have?

Two-Step Equation Math Section:

100 x+2,000=3,200

100 x=1,200x=12 cousins

Slides (Thumbnails):