Ling uses 21 bananas to make 7 fruit smoothies. what is the unit rate that ling uses for bananas per each smoothie? what is the unit rate? explain how to use equivalent fractions to find the answer

b 1: 45 am

step-by-step explanation:

its that because if it was in the pm it would be 1345

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