Solving equations with word problems

Front

What is the equation for the total cost C to rent a paddle boat for h hours if the rental charges a $15 deposit fee plus $2 for each hour?

Back

C = 2h + 15

Front

If Max earned $84 in tips for 7 hours of work, which equation represents the amount of dollars x she earned per hour in tips?

Back

84/7 = x

Front

How do you isolate the variable in the equation x - 62 = 123?

Back

Add 62 to each side.

Front

Back

x = 2

Front

Back

y = 8

Front

What does it mean to isolate a variable in an equation?

Back

To isolate a variable means to manipulate the equation so that the variable is on one side and all other terms are on the other side.

Front

Back

Subtract 5 from each side.

Front

What is the equation for the total cost C if a service charges a flat fee of $10 plus $3 for each item purchased?

Back

C = 3n + 10, where n is the number of items.

Front

If a car travels at a speed of 60 miles per hour, how would you express the distance d traveled in t hours?

Back

d = 60t.

Front

Back

x = 2.