Number one is really easy just set it up in proportions. 420 over x and 7 hours over 24 cause you know there 24 hours in a day and then cross division and simplify. I think.
B, I believe. But go with your gut instinct
Answer:
B. (x+2) is a factor
Step-by-step explanation:
3x^2 -x-14
3x^2+6x-7x-14
3x(x+2)-7(x+2)
(3x-7)(x+2)
so, x+2 is a factor of 3x^2-x-14
Answer:
x=19.998
y=3.333
Step-by-step explanation:
5x+6y=50
-x+6y=26
6y=26+x
x=26-6y
5(26-6y)+6y=50
130-30y+6y=50
130-50=30y-6y
80=24y
y= 3.333
x=26-6y
x=26-(6×3.333)
x=19.998
