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gayaneshka [121]
3 years ago
7

Which twos ratios represent quantities that are proportional?

Mathematics
1 answer:
Inessa05 [86]3 years ago
8 0

Answer: it’s 10/15 and 14/21 ;)

Step-by-step explanation:

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3 years ago
A company has two types of machines, type R and type S. Operating at a constant rate, a machine of type R does a certain job in
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Answer:

The number of machines to complete job in 2 hours is 6.

Step-by-step explanation:

Using the relation of the rate of each one machine and knowing that adding up both rates.

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Rate S = \frac{x}{18}  'x' is the job

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x= \frac{12}{2} \\

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