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Mathematics 11 Online
OpenStudy (anonymous):

Kelly earns 15% more than her sister, and together they earn $774. How much does Kelly earn per week?

OpenStudy (anonymous):

is the answer 445.05?

OpenStudy (anonymous):

you were wrong

OpenStudy (anonymous):

Let K=kelly and S=Sister K=15% more than S so K=115% of S=1.15S so 1.15S+S=774 or 2.15S=774 Hence S=$360-->K=$414

OpenStudy (anonymous):

yeah i know i did that an got the answer but when i did your way it was wrong.but thanks for trying to help

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