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It costs $31.80 to fill a car that holds 20 gallons of gas. What is the constant of proportionality that relates the cost in dollars, y, to the number of gallons of gas, x?

Respuesta :

KevinPug

Answer:

y=1.59x

Step-by-step explanation:

price= (number of gallons)x(cost per gallon)

31.80/20 gallons=1.59 per gallon

price= (number of gallons)(1.59)

pls mark branliest

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