Maths-

General

Easy

Question

# After an oil pipeline burst one morning, gas prices went up by $2.20 per gallon. If that afternoon you bought 10 gallons of gas for $53.90, what was the price per gallon before the oil pipeline burst that morning?

## The correct answer is: $3.190

- Hint:

○ Form the eqaution using given information.

○ Take variable value as any alphabet.

○ Take terms with cofficient at one side and without cofficients at another side.

- Step-by-step explanation:

○ Given:

Increase price per gallon = $2.20.

No of gallons of gas brought = 10.

Total money paid = $53.90.

○ Step 1:

Let the original price of one gallon of gas be x.

So,

Price of 1 gallon of gas after burst = original price + increase in price

Price of 1 gallon of gas after burst = x + 2.20

○ Step 2:

○ Total selling price.

Price of 1 gallon of gas after burst = x + 2.20

Price of 10 gallon of gas after burst = (x + 2.20) 10

10x + 22

As it is given total money paid is $53.90

∴ 10x + 22 = 53.90

10x = 53.90 - 22

10x = 31.90

x =

x = 3.190

- Final Answer:

Hence, the original price of one gallon of gas is $3.190.

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