Leah and Colin are selling strawberry lemonade in their neighborhood for s dollars per cup. They decided to set up stands at opposite ends of their street to sell to more people. Leah sold 20 cups of strawberry lemonade at her stand, and she made an additional $15 in tips. Colin sold 30 cups of strawberry lemonade at his stand, and he made an additional $25 in tips.

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

66.666666667%

step-by-step explanation:

divide 150 by 100

divide 100 by 1.5

there you go!

decreased by 33.333333334%

answer: your answer is a