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The sum of two numbers is 80. The ratio of those two numbers is 3:5 . Find the larger number.

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the numbers are 3x and 5x.

so, add them up, solve for x, and ...

is it 8x

Can you help ms.sue with this one.

well, yes. The next step is to use their sum to actually find x's value:

8x=80
x=10

Now, you can get the two numbers, once you know x.

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