Answer: ? Maybe 3???
Step-by-step explanation:
Answer:
4 Hours
Step-by-step explanation:
Let's say that the rate of the machines 1/x, because every time they complete an order, it takes them x hours. To find x, we have to add the the rates of the individual machines, which would equal the rate of the machines working together. We know that there are four machines working together at the same rate, and it took them 32 hours.
So:
1/x + 1/x + 1/x + 1/x = 1/32
1/4x = 1/32
4x = 32
x = 8
Thus, the rate of the machines is 1/8.
Now we have to find the time of the order with only half of the machines working together. This time, we don't know the combined rate, so I'll substitute it for y.
1/8 + 1/8 = 1/y
1/4 = 1/y
y = 4
The time taken to complete it is 4 hours.
Answer:
a= 3
b=3
c=3
d=3
Step-by-step explanation:
12-?=4, or it could also be like 12-3=4. so thats how i got it.
hope it helps. i tried. hope i did it correct if thats what u need
Answer:
Positive exponent
Step-by-step explanation:
Like x root 1 , 2 , 3 etc
If it said negative exponent then x root -1, -2 etc etc.
