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3 years ago

I am thinking of a number. i will add four and then multiply it by five. the answer will be thirty five. whats the number?

Mathematics

1 answer:

kodGreya [7K]3 years ago

3 0

Answer:

B. 3

Step-by-step explanation:

Let's make an equation for this. Our unknown number is x.

We are adding 4.

x + 4

Then multiplying by 5.

(x + 4) • 5

It will equal 35.

(x + 4) • 5 = 35

To solve this, divide both sides by 5.

(x + 4) = 7

Now subtract 4 from both sides.

x = 3

This is your answer.

Check this by plugging it back into our original equation.

(x + 4) • 5 = 35

(3 + 4) • 5 = 35

7 • 5 = 35

35 = 35

Your answer is correct.

Hope this helps!

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