Gasoline price 2

During the COVID-19 pandemic, Marilou's Gas Station gives a new gasoline price scheme to help our drivers. On their purchase, the first 4 liters cost Php 120.00, while the succeeding 1 1/2 liters would cost Php 10.00 more than the cost of a liter. If John bought 17 1/2 liters, how much should he pay?

Correct answer:

x =  660 Php

Step-by-step explanation:

V1=4 l c1=120.00/V1=120.00/4=30 Php/l c2=c1+10=30+10=40 Php/l  V=1721=17+21=217 2+1=234+1=235=17.5 l V2=VV1=2354=23524 2=23528=2358=227=13.5 l  x=V1 c1+V2 c2=4 30+227 40=660 Php

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