Acandy store makes a 9-pound mixture of gummy candy, jellly beans and hard candy. the cost of gummy candy is $2.00 per pound, jelly beans cost $3.00 per pound and hard candy cost $3.00 per pound. the mixture calls for two times as many gummy candy pieces as jelly beans. the total cost of the mixture is $23.00, how much of each ingredient did the store use?

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

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6