Let's denote the cost of one pair of sunglasses as S and the cost of one dress as D.

From the problem, we know that:

1) 4S + 3D = $750 (Diana bought 4 pairs of sunglasses and 3 dresses for $750)

2) S = 3D (1 pair of sunglasses cost the same as 3 dresses)

We can substitute equation 2) into equation 1) to get:

4(3D) + 3D = $750
12D + 3D = $750
15D = $750

Solving for D, we get:

D = $750 / 15 = $50

Substituting D = $50 into equation 2), we get:

S = 3D = 3 * $50 = $150

So, the cost of one pair of sunglasses is $150 and the cost of one dress is $50.

Question

Let's denote the cost of one pair of sunglasses as S and the cost of one dress as D.

From the problem, we know that:

1) 4S + 3D = $750 (Diana bought 4 pairs of sunglasses and 3 dresses for $750)

2) S = 3D (1 pair of sunglasses cost the same as 3 dresses)

We can substitute equation 2) into equation 1) to get:

4(3D) + 3D = $750
12D + 3D = $750
15D = $750

Solving for D, we get:

D = $750 / 15 = $50

Substituting D = $50 into equation 2), we get:

S = 3D = 3 * $50 = $150

So, the cost of one pair of sunglasses is $150 and the cost of one dress is $50.

Knowee AI · Accepted Answer