1 year ago

2.8x + 10 + 5.7x = 70+x

Mathematics

1 answer:

andrew-mc [135]1 year ago

3 0

Answer:

Step-by-step explanation a=0.32

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3 years ago

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Choice A.

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3 years ago

Professor J can grade an entire section of essays in 3 hours. His teaching assistant, M, can grade the same amount of essays in

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Answer:

The time it takes them to grade the essays if they work together is 1.857 hours

Step-by-step explanation:

Let t1 is time taken by Professor J = 3 hours
Let t2 is time taken by the assistant = 5 hours
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The formula for “Work” Problems that involve two persons is

$\frac{1}{t1} + \frac{1}{t2} =\frac{1}{tb}$

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3 years ago

ANSWER FOR BRAINLIEST

tiny-mole [99]

Answer:

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Step-by-step explanation:

Since the ratio is 6:5 and there are 18 boys, you do 18/6=3

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