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WyzAnt Tutoring Tutor Tutor United States

Service-Oriented Certified Teacher Tutor, PreK-Adult

Chicago, IL (60659)

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Daniel's Responses in WyzAnt Answers

Mark weighs 74 pounds. Together, he and his sister weigh six more pounds than three times the weight of his sister. What is the weight of marks sister?

w= weight of marks sister

+ more- less
Asked by Kristen from Metamora, IL
00

I thought of it similarly to what Robert had answered...translate the words and numbers into math language:

Mark and sister together weigh  74 + S =

Six more pounds than three times sister's weight  3S + 6

Then solve for S (sister's weight)

74 + S = 3S + 6

68 = 2S   (Subtract 6 and S from both sides)

S = 34    ( Divide both sides by 2)

Sister is 34 lbs!

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