Ashley had a summer lemonade stand where she sold small cups of lemonade for $1.25 and large cups for $2.50. if ashley sold a total of 155 cups of lemonade for $265, how many cups of each type did she sell?
s - the number of small cups l - the number of large cups
Ashley sold a total of 155 cups: s + l = 155 Ashley earnedfor $265: 1.25 * s + 2.50 * l = 265
s + l = 155 1.25 * s + 2.50 * l = 265 ________ s = 155 - l 1.25 * s + 2.50 * l = 265 ________ 1.25 * (155 - l) + 2.50 * l = 265 193.75 - 1.25 * l + 2.50 * l = 265 193.75 + 1.25 * l = 265 1.25 * l = 265 - 193.75 1.25 * l = 71.25 l = 71.25 / 1.25 l = 57
