I got 14 and 12 but there are other answers as well.
How I got that: I worked backwards. I looked at what two values I could multiply to get 4x^2 and because 4x^2 is a perfect square I just went with the square root (2x). Then I looked at what two pairs I could multiply to get 12 and I went with 3x4 and 6x2. I then plopped those numbers into binomials [(2x+3)(2x+4) and (2x+2)(2x+6)] and simplified (multiplied them) to get the middle value. (I hope this helps)
Answer:
Solution (20,40)
20 large snack packs and 40 small snack packs were sold
Step-by-step explanation:
x+y=60
5x+3y=220
x+y=60
x=60-y
5(60-y)+3y=220
-2y=-80
y=40
x+y=60
x+40=60
x=20
Hope this helps
Answer:
parallel:
perpendicular:
Step-by-step explanation:
original line:
-7x + 8y = 4
m = 7/8
parallel:
m = 7/8
L: 7x - 8y = k
(4, -4) -> L
28 + 32 = 60 = k
L: 7x - 8y = 60
perpendicular:
m = -8/7
L: -8x + 7y = k
(4, -4) -> L
-32 + 28 = -4 = k
L: -8x -7y = -4
=> 8x + 7y = 4
Answer:
The answer is zero
Step-by-step explanation:
square root of 16 would be 4
4 x 4 = 16