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3 years ago

Someone help plz plz plz

Mathematics

1 answer:

prisoha [69]3 years ago

5 0

Answer:I think it's 3 7.75/20 hours

Step-by-step explanation:

Multiply 2/15 by 20 (2x20 and 15x20)

Then 13/20 by 15 (13x15 and 20x15)

Subtract (195/300 - 40/300)

And you get 155/300

Then divide by 20 because dividing by 15 gives you 10.333333

So divide 155/300 by 20 (155÷20 and 300÷20)

And you get 7.75/20

Finally subtract the 2 hours from 5 hours and get 3 hours

Your answer is 3 7.75 hours

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Answer:

see the explanation

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we have

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Let

y=A(x)

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Exchange the variables x for y and y for x

$x=2y+5$

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Let

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<em>Explanation</em>

For x=1

Find the value of A(x)

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The point (1,7) is a solution for A(x)

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Verify

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The point (7,1) is a solution for g(x)

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