What is the principal if...
Rate = 22%
Time
1 year
Interest = $110

P = $500

Step-by-step explanation:

SI = P×R×T/100

P = (SI × 100)/R×T

P = 110×100/22×1

= $ 500

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