A washer and dryer cost $1000 combined. the cost of the washer is three times the cost of the dryer. what is the cost of the dryer?

$750 cost of the washer.

Step-by-step explanation:

3x+x=1,000

4x=1,000

x=1,000/4

x=$250 cost of the dryer.

3*250=$750 cost of the washer.

Proof:

750+250=1,000

1,000=1,000

to find the unit price, we must figure out the cost of one item (in this case one dish towel).   to do this, we divide the total price ($7.92) by the number of items bought (for this problem it is 8, because there are eight dish towels in one pack).  

$7.92/8 = $0.99

therefore, the unit price, or the price of one dish towel, is $0.99.

hope this !