nesha8
nesha8
07-12-2016
Mathematics
contestada
I don't know what to do ?
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sydneypowell167
sydneypowell167
07-12-2016
enable M = Mary's age now So Mike's age is 3M 3M + 4 = 2 (M + 4) = 2M + 8 Now, subtract 2M from the two factors. then you definitely have: M + 4 = 8 or M = 4 examine: Mike is now 12. In 4 years, Mary would be 8 and Mike would be sixteen.
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leeandrews2
leeandrews2
07-12-2016
let x = mary's age
let 3x = mike's age
3x=2x+4 subtract 2x from both sides
x=4
Mary is 4 years old.
Brainliest would be appreciated :)
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