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Mathematics 13 Online
OpenStudy (anonymous):

Marvin Co. sells pens ($6) and flashlights ($10). If total sales were $624 and customers bought 7 times as many pens as flashlight, what would be the number of pens sold?

OpenStudy (across):

\[$624=$6p+$10f\]\[p = 7f\]\[$624=$6(7f)+$10f=$52f\]\[f=12\]\[p=7(12)=84\]

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