Question

Jeremy buys 2 slices of pizza (x) and a drink (y) for $7.50. Macey buys 1 slice of pizza, a drink, and 3 cookies (z) for $6.00. A slice of pizza costs $2 more than twice the cost of a cookie. Formulate a set of equations that best represents this situation & determine the price for each item.

Answer 1

Answer: im going to use my own variables so it's more understandable for me

1: 2p + d = 7.5

2: p + d + 3c = 6

3: p - 2c = 2

(2p + d) - (p + d + 3c) = 1.5

2p + d - p - d - 3c = 1.5

p - 3c = 1.5

2p - 6c = 3

4p - 12c = 3p - 6c

p = 6c

4c = 2

c = 0.5

p - 1 = 2

p = 3

3 + d + 1.5 = 6

3 + d = 4.5

d = 1.5

so

x = 3

y = 1.5

z = 0.5

please give brainliest