Equations (Level 3)

Stacey puts $35 each month into a savings account to buy a snowoard. The snowboard costs $525. Write an equation to find the months “m” it will take for Stacey to have enough money in her savings account to buy the snowboard.

• 525 - 35 = m

• 525/35 = m

• 35m = 525

• 35 + m =525

The equation ℎ = 3y represents the height h (in feet) that a tree grows after y years. Use substitution to algebraically determine how many years until the tree is 75 feet tall.

• 72

• 225

• 78

• 25

A movie is scheduled to be 90 minutes long. However, 12 of those minutes are credits and the rest is the actual movie. How many minutes long is the movie? Write an equation to represent the number of minutes “m” long the movie is.

• 7.5

• 78

• 102

• 1080

Five students in Mrs. Deihl's class missed school on Friday. This is one-fifth of the students in class. How many total kids are enrolled in Mrs. Deihl's class?

Write an equation that represents the number of kids “n" who missed school on Friday.

• 25

• 50

• 10

• 1

You spend $24 on a board game, receive $30 for your birthday, and give $5 to charity. You have $60 left. Write an equation that represents how much money "m" you started with.

• $6

• $59

• $1

• $61

An uber costs $2 plus $3.00 per mile. Write an equation in two variables that represent the total cost of the uber ride.

• 3m = c

• 5m = c

• 2 + 3m = c

• 3m = 2c