Answer: (5, -2)
Step-by-step explanation:
Substitute x-7 for y in 2nd equation
Solve for y
Answer:
1
Step-by-step explanation:
3x+5=8
Group like terms
3x=8-5
3x=3
Divide both side by the co-efficient of x which is 3
3x/3=3/3
x=1
A is your answer because he uses half the amount of brown sugar as he does white sugar.
$ 7 dollar reduction....that means new price is (32 - 7) = 25
percent decrease = (original number - new number) / original number..* 100
(32 - 25) / 25....* 100
7/25 * 100
0.28 * 100
28% decrease <==
Answer: 1.5, -0.5
Step-by-step explanation:
4x2 + 4x -3 = 0
4x2 + 4x = 3
x2 + x = 3/4
