Grapes cost $7.55 per pound. Evan wants to buy 4.8 pounds of grapes, and he estimates that he will need $32 to buy the 4.8 pounds of grapes. Which statement about Evan’s estimate is true?
Answer
A
Evan rounded 4.8 down to 4. His estimate of $32 is too low.
B
Evan rounded both factors up. He has enough money to buy the grapes.
C
Evan rounded $7.55 up to 8. His estimate of $32 is too high.
D
Evan incorrectly multiplied $8 and 4. His estimate should be $36.
Explanation
Evan can estimate by rounding $7.55 per pound up to $8 and 4.8 pounds down to 4 pounds. Then $8 × 4 = $32. Since the actual cost is $7.55 × 4.8 = $36.24, his estimate is too low. The true statement is that he rounded 4.8 down to 4 and his estimate of $32 is too low.
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