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lana66690 [7]
3 years ago
7

michael is 3 times as old as brandon. 18 years ago, Michael was 9 times as old as brandon. how old is michael now

Mathematics
1 answer:
Ber [7]3 years ago
8 0

Let Brandon be b. Then Michael is 3b. So:

3b-18=9(b-18)

3b-18=9b-162

 

6b=144

b=24

3b=72

Brandon is 24, Michael is 72.

Hope this helped!

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