Answer: The answer is 9+11s :)
Step-by-step explanation:
Combine like terms
9+18s-7s
9=11s so I don't what you mean but in case you want to find s it will be
11 11
S=9/11
When s is 20 t is 4
when s is 10 t is 2
when s is 30 t is 6
Answer:
4.8 hours
Step-by-step explanation:
Step one:
given data
The total distance= 220 miles
The velocity of the train= 3/4 mile per minute
Required
The time of travel
Step two:
we know that
velocity= distance/time
velocity= 220/3/4
let us multiply the numerator (220) by the inverse of the denominator(4/3)
velocity =220*4/3
velocity= 880/3
velocity= 293.3 minutes
in hours
= 293.3/60
= 4.8 hours