The concession stand at the local high school sells pretzels and lemonade. The total cost of two pretzels and a lemonade is $5.75. The total cost of two lemonades is $0.25 more than the cost of a pretzel. What is the cost of a pretzel?
p = pretzel cost
then TWO lemonades = p + 25 according to description so ONE lemonade is (p=25)/2
Two pretzels and a lemonade = 575 " " "
So:
2p + (p+ 25)/2 = 575
2.5p + 12.5 = 575
2.5p= 562.5
p = 562.5/2.5 = 225 or $2.25