Johanna buys 11.2 pounds of tomatoes. Each pound costs $4.19. Which expression gives the best estimate of the cost of the tomatoes?

Question

(12)($5)
(12)($4)
(11)($5)
(11)($4)

Answer 1

To estimate the cost of the tomatoes Johanna buys, we can round the weight and the cost per pound to make the calculation simpler.

Johanna bought 11.2 pounds of tomatoes, which we can round to 12 pounds for easier calculation.

The cost per pound is $4.19, which we can round to $4.

Now we can calculate the estimated cost using the rounded values:

Estimated cost = (Number of pounds) × (Cost per pound) = 12 × 4

The expression that gives the best estimate of the cost of the tomatoes is therefore (12)($4).