SOLUTION: driving at an average speed of 50 miles an hour the trip will take 22 hours calculate the number of miles one way convert the one way distance from miles to KM find the total di

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Question 409062: driving at an average speed of 50 miles an hour the trip will take 22 hours
calculate the number of miles one way
convert the one way distance from miles to KM
find the total distance from miles to kilometers
the family car uses 6.3 L of gas per 100km. how many litres of gas are needed for the round trip?
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
driving at an average speed of v=50+%28miles%2F+hour%29 the trip will take t=22+hours
s=vt
s=50%28miles%2Fhour%2922hour

s=50%28miles%2Fcross%28hour%29%2922cross%28hour%29
s=50%2A22miles
s=1100miles............the number of miles one way

1100miles=1770.2784000000001km.......the total distance from miles to kilometers


if the family car uses 6.3+L of gas per 100km, for distance 1770.2784000000001km they will need
%28%286.3L%2Fcross%28km%29%29%281770.2784000000001cross%28km%29%29%2F100%29%29

=%286.3L%2917.702784000000001=111.53L..of gas are needed