Question

At Joe's candy store, the total cost of 1 gumball and 1 lollipop is $0.74. The total cost of 1 chocolate bar and 1 lollipop is $0.92. The total cost of 1 gumball and 1 chocolate bar is $1.24. What is the cost in dollars of 1 chocolate bar?

Answer 1

Answer:

the cost of one chocolate bar is $0.71

Explanation:

given data

cost of 1 gumball + 1 lollipop = $0.74                   ...........1

cost of 1 chocolate + and 1 lollipop = $0.92      .............2

cost of 1 gumball + 1 chocolate bar = $1.24       ..............3

to find out

cost of 1 chocolate bar

solution

we consider here

gumball = G

chocolate bar = C

lollipop = L

so now add equation 1 , 2 and 3

so we get

2(gumball + lollipop + chocolate bar ) = 1.24 + 0.74 + 0.92

2(gumball + lollipop + chocolate bar ) = 2.90

gumball + lollipop + chocolate bar = 2.90 / 2 = 1.45

G + C + L = $1.45

C = 1.45 - G + C

C = 1.45 - 0.74

C = 0.71

so the cost of one chocolate bar is $0.71