Give the answer choices and then i will help you
Answer:
Step-by-step explanation:
The answer is m • (2m - 3) • (4m + 1)
Answer:
26.25 min
Step-by-step explanation:
All the equations can be graphed and solved by graphing. They can also be solved using various other methods
Answer:
10 minutes
Step-by-step explanation:
Let's use the variable x for the amount of coins.
The first machine can sort x coins in 15 minutes, so its speed is x/15 coins/minute.
The second machine can sort x coins in 30 minutes, so its speed is x/30 coins/minute.
If we sum the speeds, we have that the speed will be:
speed = (x/15) + (x/30) = (2x + x)/30 = 3x/30 = x/10
The total speed can sort x/10 coins per minute, that is x coins in 10 minutes.
