Equations Word Problems

Front

What is an equation that represents the total cost of a holiday meal for x people, given that it costs $12.50 per person plus a $30 delivery fee?

Back

y = 30 + 12.50x

Front

How do you calculate the monthly cell phone bill for Juanita if the company charges $15.00 per month plus $0.20 per minute?

Back

C = 15 + 0.20x

Front

If the rental rate at Rent A Wreck is $30 per day plus $0.25 per mile, how much would it cost for a 100 mile rental?

Back

$55

Front

Write the equation for the total cost C to rent a paddle boat for h hours, given a $15 deposit fee and $2 per hour.

Back

C = 2h + 15

Front

What equation models the total fee at Dexter's Gym after x months, with a $40 registration fee and $20 monthly fee?

Back

20x + 40 = 340

Front

Define a variable for the total cost of a service that includes a fixed fee and a variable fee per unit used.

Back

Let C be the total cost, fixed fee be F, and variable fee per unit be V. The equation is C = F + Vx.

Front

What is the meaning of a 'fixed fee' in a cost equation?

Back

A fixed fee is a constant charge that does not change with the amount of service used.

Front

What does 'variable fee' mean in the context of a cost equation?

Back

A variable fee is a charge that changes based on the amount of service or product used.

Front

How do you determine the total cost from a cost equation?

Back

Substitute the value of the variable into the equation and solve for the total cost.

Front

What is the first step in solving a word problem involving equations?

Back

Identify the variables and what they represent in the context of the problem.