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emmasim [6.3K]
4 years ago
14

2 1/2 and 1/2 are reciprocals. True or false?

Mathematics
1 answer:
Ilia_Sergeevich [38]4 years ago
6 0

Answer:

False

Step-by-step explanation:

The reciprocal of 1/2 is 2/1.

The reciprocal of 2 1/2 is 2/5

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Exactly 1 1/3 yard of ribbon is needed to make a bow. Which of the following lengths of ribbon could be used to make a bow with
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Answer:

1 and 2/5 yards wastes only 1/15 a yard

Step-by-step explanation:

1 and 1/6 yards  would make a waste of 1 and 1/6 yards since you can't make a ribbon out of it. (incorrect)

1 and 2/10 yards  would make a waste of 1 and 1/5 yards since you can't make a ribbon out of it. (incorrect)

1 and 2/5 yards

1\frac{2}{5} -1\frac{1}{3} =\\\\1\frac{6}{15} -1\frac{5}{15} =\\\\\frac{1}{15}

Wastes 1/15 a yard.

1 and 1/2 yards  

1\frac{1}{2} -1\frac{1}{3} =\\\\1\frac{3}{6} -1\frac{2}{6} =\\\\\frac{1}{6}

It wastes 1/6 a yard.

2 yards

2-1\frac{1}{3} =\frac{2}{3}

It wastes 4/6 a yard.

4 0
3 years ago
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Answer:

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Step-by-step explanation:

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square your answer so (-3)² = 9

4 0
3 years ago
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Step-by-step explanation:

you can take the smaller number and divide it by the larger number in this ratio, and the lowest number that you can have is a 1 so this is the only answer that makes any sense.

<h2>Please mark me the brainliest!!</h2>
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cupoosta [38]

Answer:

The answer is 9 + 21b

Step-by-step explanation:

Simplify the expression.

~Hoped this helped~

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3 years ago
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