Awasher and dryer cost a total of $939. the cost of the washer is two times the cost of the dryer. find the cost of each item.

The washer costs $626 and the dryer costs $313.

Step-by-step explanation:

Let the cost of the dryer be the base unit (1 unit).

Hence, the cost of the washer will be 2 units.

Total units = 1 + 2 = 3

3u = $939

1u = $313

The dryer costs $313.

Cost of washer = $313 × 2 = $626

The washer costs $626.

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6