Answer:
15 hours
Step-by-step explanation:
Given:
Fernell's speed 
mph
Dabney's speed 
mph
Denote:
- distance covered by Fernell
- distance covered by Dabney
- Fernell's time
- Dabney's time
1. If Fernell drove for 3 hours longer than Dabney, then his time is 3 hours more than Dabney's time and
2. If Fernell covered 18 miles less than Dabney, then
Use formula 
Subtract from the first equation the second equation and equate it to 18:
Answer:
Step-by-step explanation:
Let the number of blue marbles be x
The number of green marbles = 3x - 2
Total marbles= 18
x + 3x -2 = 18
4x - 2 = 18
4x = 18+2
4x = 20
x =20/4
x =5
The number of blue marbles = 5
The number of green marbles = 3*5 - 2 = 15 -2 = 13
For 2 5% Do you mean 2 5/6? If It is then here your answer..
If Not Please tell me..
Answer:
6 1/14
Step-by-step explanation:
2 5/6 · 2 1/7
= 17/6 · 15/7
= 85/14
= 6 1/14 miles
