anonymous
  • anonymous
A student solved this problem and said the answer is 8 1/2 pounds. Jill's club bought 4 2/5 pounds of hot dogs, 3 1/2 pounds of hamburger, and 2 3/10 pounds of chicken for the picnic. How much meat did they buy altogether? Is the student's answer reasonable? A. Yes, the answer is reasonable. B. No, the answer is not reasonable. It should be about 10 pounds. C. No, the answer is not reasonable. It should be about 12 pounds. D. No, the answer is not reasonable. It should be about 15 pounds.
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
anonymous
  • anonymous
anonymous
  • anonymous
someone help

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Vocaloid
  • Vocaloid
well, using estimation I could round down each number 4 2/5 rounds down to 4 3 1/2 rounds down to 3 2 3/10 rounds down to 2 4+3+2 = 9, but since we rounded down a bit we know that the answer MUST be greater than 9 it looks like all the fractions add up to about 1 (using my calculator I get 6/5) so, 9 + 6/5 is closest to which of the answer choices?
anonymous
  • anonymous
Vocaloid
  • Vocaloid
no, please try again... 9 + 6/5 is closest to which of the choices?
anonymous
  • anonymous
b
Vocaloid
  • Vocaloid
great, but do you understand why A is wrong? I want to make sure you aren't just guessing...
anonymous
  • anonymous
so b and yeah!
Vocaloid
  • Vocaloid
then please explain why A is wrong
anonymous
  • anonymous
well since we got 9 its not a because there is nothing that is alomst the same as 9
Vocaloid
  • Vocaloid
great good job ~

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