Question

Carina spent a total of $5.27 buying a pineapple for $3.40 and some tomatoes that were on sale for $0.85 per pound. To determine the number of pounds of tomatoes that she bought, x, Carina wrote and solved the equation as shown below. 3.40 + 0.85 x = 5.27. 0.85 x = 8.67. x = 10.2 pounds. Where, if anywhere, did Carina make an error?

Answer 1

(C) Carina should have subtracted 3.40 from 5.27.

Explanation:

Answer 2

She subtracted 3.4 on the left and added 3.40 on the right

Explanation:

3.40 + 0.85 x = 5.27

Subtract 3.40 from each side

3.40 -3.40+ 0.85 x = 5.27-3.40

.85x = 5.27 - 3.40

.85x =1.87

Divide by .85

.85x/.85 =1.87/.85

x = 2.2