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?

I think the answer is $20...am i right?

Question

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?

I think the answer is $20...am i right?

anonymous · Answer

Let the price of pink be a
Let the price of gold be b

21a + 10b = 770

7a + 20b = 840

a = 20
b = 35

anonymous · Answer

thanks