How many bags of gummy worms did he buy?

Question

Mr. Coulson bought sour gummy worms, skittles, and mound bars for the winner of his jeapardy games. He remembers buying 12 pieces of candy total and spending $10. If he bought four times as many mounds bars as bags of skittles, how many bags of sour gummy worms did he buy?

Answer 1

x is the # of gummy worms

y is the # of skittles

z is the # of mound bars

z = 4y

x + y + z = 12

x + y + 4y = 12

x + 5y = 12 <---- this is the 1st equation

The you need:

price of gummy words * x + price of skittles * y + price of mound bars * (4y) = 10

where the prices are in dollars...

This is the second equation