Expressions Real World

Fred is going to a carnival. There is an $8 entrance fee, and rides cost $3 a piece. Write an algebraic expression that will give the amount of money Fred spent if he rode r number of rides. 

• 8 + 3r

• 8 + 3 + r

• 8r + 3

• 8r - 3

Allie has $30; she gets d dollars for her birthday. Which expression represents the amount of money she has now?

• 30 - d

• 30 + d

• 30d

• d -30

Each week, Mark earns $350.  He spends d dollars during the week.  Which expression represents the amount of money he has left at the end of the week?

• 350 - d

• d - 350

• 350 + d

• 350d

There are 8 yogurt drinks in a package.  Write an expression that tells how many yogurt drinks are in x packages.  

• 8 + x

• 8x

• 8 - x 

• 8 ÷ x

An electrician charges a $50 fee to travel to your house. He also charges $20 per hour that he is working.  Write an expression to represent how much money he will make in y hours.

• 50y + 20

• 20y + 50

• 20 + y + 50

• 20y - 50

Alyssa sold c boxes of cookies. Her friend Sarah sold double the number of boxes as Alyssa plus another 5 boxes. Which expression represents how many boxes Sarah sold?  

• 5c + 2

• 2c + 5

• 2/c +5

• 2(5) + c

You have a container that has L cups of water. You accidentally spill 2 cups of water. Write an expression that represents the amount of water that is left in the container.

•  L - 2

• 2  - L

•  2 + L

• 2L

Adriana has 5 cans of soda. She needs to buy several more cases (c) of soda for a picnic.  Each case has 24 cans. Which expression would show how many cans of soda Adriana has altogether?

• 24c + 5

• 24 + 5

• c+ 5

• 24c - 5

A blade of grass triples in height every month. Write an expression for the height of a blade of grass after one month of growth if its original height was h.

• 3 + h

• 3 - h

• 3h

• h - 3

Your mother gives you $2 per day. How much money will you have after t days? 

• 2 + t

• 2 - t

• 2t

• 2/t