Answer:
D
Step-by-step explanation:
Where f(0) is or x=0, y= 4
If she is making 6 costumes that need 3 7/9 yards each, the equation would be 6 x 3 7/9.
The answer to that equation would be 22 2/3.
How to get the answer:
3 x 6 = 18
7 x 6 = 42 (the seven is from the 7/9)
42/9 = 4 2/3
then add the eight teen and the 4 2/3 and you get 22 2/3.
We can set up a system of equations:
x + y = 12
x - y = 4
Adding these two together:
2x = 16
x = 8
Substituting 8 in the first equation:
8 + y = 12
y = 4
Hope this helps!
Answer:
D: t = u/9 + 7 (that is simplified all of the way) for your case it is t = u + 63/9 so D
Explanation:
Just ask if you need an explanation. Also, does anyone do LD debate?
