Answer:
2.5 hours
Step-by-step explanation:
The product of speed and time is distance. If the distance is the same, then time is inversely proportional to speed. At 60/50 = 6/5 times the speed, the return trip will take 5/6 times the time:
(5/6)(3 hours) = 2.5 hours . . . time for return trip
Answer:
After 120 seconds
Step-by-step explanation:
Here, we want to know the number of seconds after which both spotlights will change colors at the same time again.
Basically, what we want to do here is to
calculate the value with which 30 and 40 have the same multiples or we want to
calculate the lowest common multiple of 30 and 40
The multiples of 30 are 30,60,90,120 etc
The multiples of 40 are 40,80,120 etc
We can see that the lowest common multiple of both is 120
So therefore the spotlights will change colors at the same time after 120 seconds
Your answer is <span>0.75 i hope I helped!</span>
Susie bought 434 pounds, and ate 58pounds
so, 434-58= 376
> 376pounds left
First, write down all the factors for 9 and 12:
9) 1, 3, 9
12) 1, 2, 3, 4, 6, 12
The greatest number that both lists share is 3, so 3 is your GCF.