fossil fuels are produced by the decay of organic material over millions of years. to make one gallon of gas, it takes about 98 tons of organic material, roughly the amount of wheat that could be harvested in a 40 acre field.

Write an expression for the amount ( in tons) of organic material it takes to make g gallons of gas.

How many tons would it take to make enough gas to fill a car's 20 gallon gas tank??

Question

fossil fuels are produced by the decay of organic material over millions of years. to make one gallon of gas, it takes about 98 tons of organic material, roughly the amount of wheat that could be harvested in a 40 acre field. 



Write an expression for the amount ( in tons) of organic material it takes to make g gallons of gas.


How many tons would it take to make enough gas to fill a car's 20 gallon gas tank??

anonymous · Answer

1 g (gallon) = 98 (tons of organic matter)
 
a standard ratio-proportion problem.....
 
1/98 = 20/x -------> cross multiply .....
 
x=98 <times> 20
 x=1960
 
so it takes 1,960 tons of organic material to fill a 20 gallon tank

anonymous · Answer

tyvm