Answer:
7/10 or 70% or 0.7
Step-by-step explanation:
4 black, 10 red
10+4=14
now you put it over the total marbles
14/20=7/10
i don't know how your teacher wants you to give the answer but it is 7/10 or 0.7 or 70%
The answer is the last one 5x-12/(x+3)(x-3)
Answer:
x = 0
Step-by-step explanation:
2(x - 3) + 9 = 3(x + 1) + x
2x - 6 + 9 = 3x + 3 + x
2x + 3 = 4x + 3
2x - 4x = 3 - 3
-2x = 0
2x = 0
x = 0/2
x = 0
