Answer:
5:40
Step-by-step explanation:
This is a problem involving the least common difference.
If you know that the red and blue trains left at the same time at 5, you know that another red train will leave at 5:08. Another blue train at 5:10.
The way to solve this will be to write out the factors of 8 and 10 and find the smallest number that they overlap.
Red:
8, 16, 24, 32, 40, 48, 56, 64, 72, 80
Blue:
10, 20, 30, 40
You see that after 40 mnutes, they are both leaving the station again. After 40 minutes, at 5:40, they are both leaving.
Answer:
20 (.8) = 16
Step-by-step explanation:
It takes him 16 minutes to walk to school.
This is because 80% as a decimal is .8 and you multiply that by how long it takes Person A to walk and you get 16.
Answer:
C.
Step-by-step explanation:
D = c-1.
X = 3
Hope it helped.
100% of 20 is 20. Now we have 30% to add to it.
We know 25% of 20 is 5 since 20/4 = 5.. Since 25% is close to 30% this is a close estimate.
We get 25 this way
If you multiply -17 by 6 you'll get -102, so I guess you should multiply the whole equation by 6, and youll get: 18y= -12x-102