85/5
(50+35)/5
50/5 + 35/5
10+7=17
Answer:
(7,6)
Step-by-step explanation:
rotate 90 degree clockwise: (x,y) -> (y,-x)
3x + 2y=-10 equation 1
y=-x -4 equation 2
use the substitution method of elimination to get the answer to the question.
*using substitution
substitute equation 2 in one and we get
3x +2(-x-4)=-10
3x- 2x-8=-10
x=-2 and y=-2
Answer:
B
Answer:
17 , 65
Step-by-step explanation:
x+ y = 82
y = 4x - 3
=====================
Put the second equation into the first.
x + 4x - 3 = 82
5x = 85
x = 85/5
x = 17
17 + y = 82
x = 82 - 17
x = 65
15 x .06 = 0.9
Sales tax is 0.9 on a $15.00 item.
