A bus driver filled up 7/8 of her fuel a tank for a trip. She used 6/7 of the fuel by the end of the trip. The capacity of her tank is 70 gallons.
How much fuel did she use for the trip?
7/8 x 70 = 245/4 = 61.25 gallon was filled
6/7 x 245/4= 105/2 = 52.5 gallon
To find out how much fuel the bus driver used for the trip, we can use the information given in the problem.
First, let's calculate the amount of fuel she filled up before the trip. We are told that she filled up 7/8 of her fuel tank. The capacity of her tank is 70 gallons, so to find out how much she filled up, we can multiply the tank capacity by 7/8:
Fuel filled up = 70 gallons * 7/8 = 490/8 = 61.25 gallons (rounded to the nearest hundredth)
Next, we need to find out how much fuel she used by the end of the trip. We are told that she used 6/7 of the fuel. To calculate this, we can multiply the amount of fuel she filled up by 6/7:
Fuel used = 61.25 gallons * 6/7 = 367.5/7 = 52.5 gallons (rounded to the nearest tenth)
Therefore, the bus driver used approximately 52.5 gallons of fuel for the trip.