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almond37 [142]
3 years ago
14

Michael is 3 times as old as Brandon. 18 years ago, Michael was 9 times as old as Brandon.

Mathematics
2 answers:
lesya [120]3 years ago
8 0
M=michaels's age now
b=brandon's age now
m-18=michael's age 18 years ago
b-18=brandon's age 1 yeas ago


m is 3 times b
m=3b

18 years ago
m-18=9(b-18)

so
sub 3b for m

3b-18=9(b-18)
distribute
3b-18=9b-162
minus 3b both sides
-18=6b-162
add 162 bot sides
144=6b
divde both sides by 6
24=b

sub back

m=3b
m=3(24)
m=72


brandon is 24 and michale is 72
Nezavi [6.7K]3 years ago
3 0
Brandon is 24 michael is 72...hope that helps :D
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