Answer:
The faster train goes 60mph
Step-by-step explanation:
s= speed
s+20 is the faster train.
Then you are given:
200/s+s+20=2
200=2*(2s+20)
4s+40=200
4s=160
s=40 is the slower train
40+20= speed of faster one
s=60 ;)
Answer:
=x<-7
If they're asking for work, I'd be glad to show.
No, 56 is a multiple of 7 though.
Total expenses;
1/2*60=30
2/3*30=20
Total = 50
Remainder;
60-50
<span>£</span>10
