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marishachu [46]
2 years ago
13

Ethan's full backpack weighed too much. He took out a 4/8 pound electronic reader, a 2 ⅛ pound full bottle of water, and a ⅞ pou

nd combination lock. Now the backpack weighs 8 ⅝ pounds. How much did the backpack weigh before Ethan took out the supplies? Number model
Mathematics
1 answer:
Luba_88 [7]2 years ago
4 0

Answer:

see below

Step-by-step explanation:

We can just add up all of these fractions:

2 1/8 + 7/8 = 2 8/8 = 3

8 5/8 + 4/8 = 8 9/8 = 9 1/8

3 + 9 1/8 = 12\frac{1}{8}

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Step-by-step explanation:

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Finally, subtract the "notch" volume from the 216 m³ volume found earlier:

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4 0
3 years ago
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inna [77]

Answer:

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Step-by-step explanation:

the absolute value function only makes sure that the result always has a positive sign.

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