Expressions from Word Problems

Mr. Piper's plumbing needed repairs. The plumber charged $98 for parts plus $45 per hour for labor. If the bill totaled $458, how could I find out the hours of labored required?

• 98x + 45 = 458

• 98 + 45x = 458

• 45 + 98 = 458

• 45x - 98 = 458

Mr. Marcin is making bags of prizes. He has 92 prizes and splits them evenly into b bags. Which expression represents how many prizes are in each bag?

There were 47 frogs in a pond. f of the frogs hopped away. Choose the expression that represents the number of frogs left in the pond.

There are r rows of chairs with 8 chairs in each row. Choose the expression that represents the total number of chairs.

Shawn and his friends are going to the State Fair. It costs $12 to park their car. Tickets to get in are $10 per person. If p represents the number of people, which expression represents how much money Shawn and his friends will spend?

• 12p + 10p

• 12p - 10p

• 12p + 10

• 12 + 10p

A plane traveling to New York has 100 seats on board. If there are p passengers on the plane, which expression represents the number of empty seats there are on the plane?

• p - 100

• 100 - p

• 100p

• 100 + p

Jordan makes 100 dollars each week. He worked for x weeks this summer.  Write an expression to represent how much money Jordan made this summer.

Ben has x dollars. Cam has 7 fewer dollars than Ben. Which expression shows how much money Cam has?

Rebecca paid a total of $324 for concert tickets. Rebecca bought x amount of tickets.  Choose the expression that represents how much each ticket cost.

• There are 35 people at a picnic. Five people brought drinks.  Everyone else brought food.  How many people brought food?

• There are 5 people at the picnic.  More people decided to come. There are only 35 cookies.  How many cookies will each person get if they all get the same amount?

• There are 35 people at a picnic.  Other families decided to come to the picnic.  Each family that came had 5 people in it.  How many people are now at the picnic?