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One number is 10 times as large as another, and their difference is 81. Find the numbers.

If x represents the smaller number, then the larger number is

2 Answers

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Let x = smaller number.


So for this, our larger number equation is 10x, and to find what x is, we have to set it to 81. Our equation will be
10x-x=81


Firstly, combine like terms:
9x=81


Next, divide 9 on both sides of the equation, and your answer should be
x=9 .


Now that we know that the smaller number is 9, just multiply that by 10 to get 90.


And in short, the smaller number is 9 and the larger number is 90.


If x represented the smaller number, then the larger number is 10x.

User Damiano Celent
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1 vote

Answers:

The smaller number is x, this means that the larger number is 10x

The smaller number is 9

The larger number is 90


Step-by-step explanation:

We are given that the smaller number is x and that the larger number is 10 times the smaller one.

This means that:

larger number = 10 * x = 10x


Now, we know that the difference between them is 81

This means that:

larger number - smaller number = 81

10x - x = 81

9x = 81

x = 9


Based on the above:

The smaller number = x = 9

The larger number = 10x = 10 * 9 = 90


Hope this helps :)

User VolAnd
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7.7k points

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