A candy bar and a piece of bubble gum together cost 1.50. The candy bar costs a dollar more than the bubble gum. How much does the piece of bubble gum cost, in cents?
A candy bar and a piece of bubble gum together cost 1.50. The candy bar costs a dollar more than the bubble gum. How much does the piece of bubble gum cost, in cents?
Call the candy bar "C" and the bubble gum "B".
C + B = 1.50
B = C – 1.00
C + (C – 1.00) = 1.50
2C – 1.00 = 1.50
2C = 2.50
C = 1.25
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