Answer:
10 minutes for 480 copies. Divide 480 by 10 and get 48 copies per minute. If you divide 720 by 48 you get 15, so it takes 15 minutes to make 720 copies.
Step-by-step explanation:
x + 2y = 5 /* (-1)
3x + 2y = 9
__________
-x - 2y = -5
3x + 2y = 9
add these two equations
_______________
2x = 4
x = 4/2 = 2$ for a hotdog
2y = 5 - x = 5 - 2 = 3 => y = 3/2 = 1.5$ for a hamburger
Answer:
c + 2g
Step-by-step explanation:
g + g = 2g
c + 2g
It’s the third one. Hope that helped!
4x - 24y = 72
First subtract 4x from each side
-24y = -4x + 72
Divide each side by -24 so y is by itself
y = -4/-24x + 72/-24
To simplify -4/-24, the greatest common factor they have is -4, so divide the numerator and denominator by -4
y = 1/6x + 72/-24
To simplify 72/-24, the greatest common factor is 24, so divide the numerator and denominator by 24
y = 1/6x - 3
This is now in slope intercept form
