liter of biodiesel requires 5-7 kilograms of coffee grounds, how many pounds of coffee will be needed to fill up a 10 gallon (40 liter) car engine? (1 kilogram = 2.2 pounds
To determine how many pounds of coffee grounds are needed to fill up a 10-gallon (40-liter) car engine with biodiesel, we first need to find out the number of liters of biodiesel needed.
In the given information, it is stated that 1 liter of biodiesel requires 5-7 kilograms of coffee grounds. Since we aim to find the maximum amount needed, we'll use the upper limit of 7 kilograms per liter.
Therefore, the total kilograms of coffee grounds needed for 40 liters of biodiesel can be calculated as follows:
40 liters × 7 kilograms/liter = 280 kilograms
Now we have the weight in kilograms, but we need to convert it to pounds. It is given that 1 kilogram is equal to 2.2 pounds.
So, to convert kilograms to pounds, we can multiply the weight in kilograms by the conversion factor:
280 kilograms × 2.2 pounds/kilogram = 616 pounds
Therefore, approximately 616 pounds of coffee grounds will be needed to fill up a 10-gallon (40-liter) car engine with biodiesel.