Well going off what I know (you don't have the equations up)
You have to isolate x
3/4x = 6
(4) 3/4x = 6 *multiplying by 4 cancels the fraction.
3x = 24
Divide by 3
X = 6
Answer:

Step-by-step explanation:







C! All you have to do is substitute the numbers into the problem!
Answer:
1200 copies
Step-by-step explanation:
We can use ratios to solve
480 copies x copies
------------------ = -------------
4 minutes 10 minutes
Using cross products
480* 10 = 4x
Divide each side by 4
4800/4 = 4x/4
1200 =x