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Alexxx [7]
4 years ago
15

A student solved this problem and said the answer is 5\8 pounds.

Mathematics
2 answers:
DaniilM [7]4 years ago
8 0

Answer:

B. No, the answer is not reasonable. It should be a bit more than 1 1/2 pounds.

Step-by-step explanation:

We have been given that Gino has 3\frac{7}{8} pounds of grapes. He has 2\frac{1}{4} pounds of green grapes and the rest are red grapes. A student solved this problem and said the answer is \frac{5}{8} pounds.

Let us solve the given problem by subtracting 2\frac{1}{4} from 3\frac{7}{8}.

3\frac{7}{8}-2\frac{1}{4}

\frac{3*8+7}{8}-\frac{2*4+1}{4}

\frac{31}{8}-\frac{9}{4}

\frac{31}{8}-\frac{9*2}{4*2}

\frac{31}{8}-\frac{18}{8}

\frac{31-18}{8}

\frac{13}{8}

1\frac{5}{8}

Since 1\frac{5}{8} is greater than 1\frac{1}{2}, therefore, option B is the correct choice.

Helga [31]4 years ago
6 0
1 3/8 lbs. 2 1/2 = 2 4/8. (8/8 is 1 lb) 2 4/8 + 8/8 = 3 4/8 add 3/8 to equal 3 7/8. You have added 1 3/8 lb to 2 1/2 lb to make 3 7/8 lbs.
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Multiply the first x by both numbers in the second factor. Which means, you multiply x by x and 8, the two in (x + 8).

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Then do the same thing with -7.

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Then combine the two.
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Answer: A
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