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When 70​% of a number is added to the​ number, the result is 170.

User Nanocom
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1 Answer

3 votes

Let x represent the unknown number.

You can format this question with the formula 0.7x + x = 170.

Notice how you are adding 70% of x to 100% of x which results in 170.

Simplifying that expression leaves you with 1.7x = 170.

Divide both sides to get x = 10.

Hope this helps!

User Tom Withers
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