Amina11 Amina11

11-09-2017
Mathematics

contestada

James is 13 years older than one half of Abby's age. Monica is one year younger than four times Abby's age. If James and Monica are the same age, how old are they

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barnapeli barnapeli

11-09-2017

James and Monica are 15 years old and Abby is 4 years old.

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raitissemerikoow4w9l raitissemerikoow4w9l

11-09-2017

J = 13+0.5A
M = 4A - 1
Since J = M you can just say
X = 13+0.5A
X = 4A - 1
Merge the equations by getting rid of one of the variables and solve for the remaining variable

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