It would be 7 because -3 times 5
Begin by factoring 2 out of 2x^2 - 2x - 12 equals 0:
2(x^2 - x - 6) = 0
2(x - 3)(x + 2) = 0. 2 is never zero, but x-3 and x+2 can each be set = to 0:
This results in x = 3 and x = -2. The equation is true for these two x-values.
100 = 40 + 3x
Subtract 40 from each side
60 = 3x
Divide each side by 3
20 = x
The highest price of a sweatshirt can be $20
100 = 40 + 3(20)
Answer:
8 boxes of pens, 3 boxes of pencils
Step-by-step explanation:
120 is 3 boxes of pencils
120 is 8 boxes of pens
9/16 + 1/2 = 9/16 + 8/16 = 17/16 = 1 1/16
