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OpenStudy (anonymous):
In 2008, a cure for cancer walk sold 21 pink sponsorships and 10 gold sponsorships for a total of $770. In 2009 the walk collected $840 by selling 7 pink sponsorships and 20 gold sponsorships. What is the cost of one pink sponsorship?
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OpenStudy (anonymous):
21x +10y =770 7x +20y = 840
OpenStudy (anonymous):
20 $27 $11 $35 those are the answers
OpenStudy (king):
20
OpenStudy (anonymous):
pink = 20 gold = 30
OpenStudy (anonymous):
thank you both
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