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Lapatulllka [165]
4 years ago
8

fred saves half as much as john. john saved four times as much as mary. together all three save $280 dollars. how much did each

person save
Mathematics
1 answer:
vazorg [7]4 years ago
7 0
F = 1/2 J = 2M
J = 4M

M + F + J = $280

M + 2M + 4M = $280
7M = $280

M = $280/7 = $40 

J = 4M = 4x40 = $160
F = 1/2 (160) = $80

40 + 160 + 80 = $280

Mary saved $40
Fred saved $80
John saved $160
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