Answer:
its the second one
Step-by-step explanation:
hope it helps
X = 36/5
Or x = 7.2
21 + x = 6x - 15
21 = 6x - 15 - x
21 = 5x - 15
21 + 15 = 5x
36 = 5x
36/5 = x
24 total marbles
6 are black
so you have a 6/24, reduced to 1/4 probability of picking a black one.
Answer:
1.75 liters for each car.
Step-by-step explanation:
Divide:
*7 / 4 = 1.75.
Check:
*1.75 x 4 = 7.