Question

A washer and a dryer cost $670 combined. The washer costs $80 less than the dryer. What is the cost of the dryer?

Answer 1

Set x equal to the cost of the dryer
Set y equal to the cost of the washer

you should be able to set up two equations from this question.

You then simply sub one equation into the other equation to solve for one of the variables, then sub that value back into one of the equations to solve for the other.

This is just a systems of equations question.

Answer 2

the first sentence describes an equation that can be set up
the second sentence describes the second equation that can be set up

Answer 3

I was told I would have to use a formula is that true or no?

Answer 4

so using x and y, set up an equation for:

A washer and a dryer cost $670 combined


Then set up an equation using x and y for:

The washer costs $80 less than the dryer.

Answer 5

you know the cost of the washer PLUS the cost of the dryer equals 670

You can set up an equation to show this using two variables


you also know the cost of the dryer is equal to the cost of the washer minus $80

Answer 6

You can set up an equation to show this using two variables

Answer 7

Once you have two equations you can solve for x and y

Answer 8

ok