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2 years ago

Find the sum of 5x+20 and the opposite of 20. Write an equivalent expression in standard form. Justify each step.

Mathematics

2 answers:

Mrrafil [7]2 years ago

7 0

The answer would more than likely to be 4..
because u divide 5 on both sides and it will give you x=4

Artemon [7]2 years ago

6 0

Do 5x + 1 instead of 5x + 20, because there was more than likely a mistype.

Now we are also looking for the reciprocal so we do (5x + 1)/20

Either that is the answer or there is something missing. If this is not the answer then there needs to be a number we can set the equation equal to

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You run 1 3/4 miles each day. Your friend runs 4times as far as you do. How far does your friend run each day

Inga [223]

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2 years ago

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Nastasia [14]

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2 years ago

If 15% of x is 42, what is x?

Blizzard [7]

Answer:

x=280

Step-by-step explanation:

We have, 15% × x = 42

or,

100

× x = 42

Multiplying both sides by 100 and dividing both sides by 15,

we have x = 42 ×

100

x = 280

If you are using a calculator, simply enter 42×100÷15, which will give you the answer.

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2 years ago

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katrin [286]

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Step-by-step explanation:

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LenKa [72]

Answer:

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Step-by-step explanation:

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