rebecca1233

Mrs. Computer is 3 times older than her daughter, Mousy. The sum of their ages is 52. How old is Mousy?
Mousy is ____ years old. (Be sure to only type Mousy’s age in the answer blank.)

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Shane_B

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Let x = Mrs. Computer and y = Mousy:
x = 3y
x+y=52
Solve it the same way as before...

viniterranova

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3x=y and x+y =52

viniterranova

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x=52/4 x = 13

viniterranova

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3x , 3(13)=39

viniterranova

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y=52-39, y=13

rebecca1233

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so answer is 13

viniterranova

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Mrs. computter has 39 years old and her daughter is 13 years old.

rebecca1233

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Thanks!