The news announced a $0.4 oil price rollback this Friday. Mr. Deane decided to only fill his gas tank with 10 liters of gas today and then another 25 liters on Friday. If the cost per liter of gas is $1.4 today, how much will Mr. Deane spend for his 35 liters of gas?
How much will Mr. Deane spend for the 10 liters of gas today? ** Mr. Deane will spend $1.4/liter x 10 liters = $<<1.4*10=14>>14 for the 10 liters of gas today.
What will the price of the gas per liter be on Friday? ** The price of the gas per liter on Friday will be $1.4/liter - $0.4/liter = $<<1.4-0.4=1>>1/liter.
How much will Mr. Deane spend for the 25 liters of gas on Friday? ** So, he will spend $1/liter x 25 liters = $<<1*25=25>>25 for the 25 liters of gas on Friday.
How much will Mr. Deane spend for the 35 liters of gas? ** Thus, Mr. Deane will spend a total of $14 + $25 = $<<14+25=39>>39 for the 35 liters of gas.
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