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gas costs $6 per gallon and diesel costs $8 per gallon. you have at most $85 to spend on fuel. you must purchase at least 12 gallons of gas for your car to run for the week. let x be the amount of gas purchased and y be the amount of diesel purchased. which of the following is a possible solution?

(12,1.625)

Step-by-step explanation:

Gas costs $6 per gallon

Cost of x gallons gas = $6x

Diesel costs $8 per gallon

Cost of y gallons gas = $8x

You have at most $85 to spend on fuel.

So, equations becomes :

You must purchase at least 12 gallons of gas for your car

So, by plotting graph , we get the possible solution .

Solution : (12,1.625)

you can't solve x because it is 2 linear equation and you only have one equation