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 + 0.85x = 5.27. What did Carina do wrong?

A. Carina did not make any errors.
B. The initial equation that Carina wrote was incorrect.
C. Carina should have subtracted 3.40 from 5.27.
D. Carina should have divided 8.67 by 0.85.

Answer 1

Carina made an error in the initial equation by adding instead of subtracting. The correct equation should be 5.27 - 3.40 = 0.85x. After solving, x is approximately 2.2.

Step-by-step explanation:

Carina made an error in the initial equation. She should have subtracted 3.40 from 5.27 instead of adding it. The correct equation should have been 5.27 - 3.40 = 0.85x. This would give her the equation 1.87 = 0.85x to solve for x.

To solve for x, divide both sides of the equation by 0.85: x = 1.87 / 0.85.

Finally, calculate the division: x ≈ 2.2.