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vesna_86 [32]
3 years ago
9

Pleeeaase can u helppp meee thanks will mark brainliest!!

Mathematics
1 answer:
Elden [556K]3 years ago
6 0

Answer:

140 cubic cm

Step-by-step explanation:

v=1/3 bh

b=1/2(3) (5) (4)=60

b=1/2(60)=30

v=1/3(60)7=420

420/3=140

hope this helps

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<h3>Answer: 3/10 of a shed</h3>

=============================================================

Explanation:

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This will allow us to rewrite the fractions with a common denominator.

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So Jack can build 8/40 of the shed in the same amount of time Kyle can build 25/40 of the shed.

Instead of writing fractions (which honestly are a pain to deal with), I'm going to write "8 pieces" and "25 pieces" to represent "8/40" and "25/40" respectively. Just keep in mind that there are 40 pieces total.

So again, Jack can assemble 8 pieces in the time it takes Kyle to assemble 25 pieces.

---------------

The ultimate goal is to have Kyle assemble 40 pieces while Jack puts together some unknown number of pieces (some number between 8 and 40). Let's say it's x.

We can then form this proportion

\frac{\text{Jack's initial 8 pieces}}{\text{x pieces}}=\frac{\text{Kyle's initial 25 pieces}}{\text{goal of 40 pieces}}

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-----------------

Let's solve for x using cross multiplication

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So we'll round 12.8 down to 12.

Jack can assemble 12 pieces in the time it takes Kyle to assemble 40 pieces.

Let's then convert this back to fraction form

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i hope this helps <3

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