Q:
Joe's car can go 9 1/7km with 1 liter of gas. How far can it go with 1 1/8 liters of gas?
9 1/7 to 9.143
1 1/8 to 1.125
1 liter / 9.143 = 0.109 liters per km
1.125 liters / 0.109 liters per km = 10.32km
A:
Joe's car can go 10.32km on 1 1/8 liters of gas.
Is this correct?
Thank you.
1 L take you 64/7 km
9/8 L take you (64/7) * (9/8) or 72/7 km
or
10 2/7 km = appr 10.29 km
again, I repeat my concern about decimals vs fractions.
First of all you rounded off intermediate answers, so the error just gets compounded
Thank you, Reiny.
I see your point about decimals vs. fractions.
Yes, that is correct! Joe's car can go approximately 10.32 kilometers with 1 1/8 liters of gas. To arrive at this answer, we first convert the given measurements to decimal form:
9 1/7 becomes 9.143
1 1/8 becomes 1.125
Next, we determine the fuel efficiency of the car by dividing 1 liter of gas by the distance it can travel:
1 liter / 9.143 km = 0.109 liters per km
Finally, we calculate the distance the car can travel with 1 1/8 liters of gas by dividing the amount of gas by the fuel efficiency:
1.125 liters / 0.109 liters per km = 10.32 km
So, Joe's car can travel approximately 10.32 kilometers with 1 1/8 liters of gas.