Question

Ayden filled up hi car with ga before embarking on a road trip acro the country. The car ue 2 gallon of ga for every hour driven, and after driving for 4 hour, there were 4 gallon of ga left in the tank. Write an equation for G,G in term of T,T, repreenting the number of gallon of ga remaining in Ayden ga tank after TT hour of driving

Answer 1

Equation for G, representing the number of gallons of gas left after ‘T’ hours will be: G = 12 - 2T

Let G be the total number of gallons of gas left

And t be the time in hours

Since, car uses 2 gallons of gas in  1 hours

Therefore, total gallons of gas used in 4 hours will be 2 x 4 = 8 gallons

Total gallons of gas left after 4 hours = 4 gallons

Therefore, total gallons of gas before embarking on a road trip = 8 + 4 = 12 gallons

In general from the unitary method, number of gallons of gas used in time ‘T’ will be 2T

Therefore, Total gallons of gas left = (Total gallons of gas embarked on a road trip) - ( Total gallons of gas used in the trip at time ‘T’ )

From the above conclusions, we can write

G = 12 - 2T

To know more about the equation on unitary method, visit here:

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