Question

you bought 5 chocolate bars and 8 blow pops for $23.25 your sister bought 2 chocolate bars and 13 blow pops for 21.55 how much did each chocolate bar cost?

Answer 1

• $2.65

Explanation:

Let chocolate bar = c and blow pops = b

As per given we have equations below:

• 5c + 8b = 23.25
• 2c + 13b = 21.55

13 times the first equation minus 8 times the second to eliminate b and find c:

• 13(5c + 8b) - 8(2c + 13b) = 13(23.25) - 8(21.55)
• 65c - 16c = 129.85
• 49c = 129.85
• c = 129.85/49
• c = 2.65

Each chocolate bar costs $2.65