Step-by-step explanation:
hope this helps you dear friend.
The answer is 72
b/c 80% is equal to .80
so you do 90x.80
Answer:
2x + 1.5y = 15
Step-by-step explanation:
2x + 1.5y = 15 because just plug in the variables.
Y = 4x + 3 ---------(1)
y = -x - 2 ---------(2)
Subtract (2) from (1), you get
0 = 5x + 5
⇒ 5x + 5 = 0
⇒ 5x = -5
⇒ x = -5/5 = -1
y = -(-1) - 2 = -1
Answer is (-1,-1)
To solve for x
x+7y=-4
x=-4-7y
