A car can travel 80 miles on 4 gallons of gasoline. If the gas tank, which can hold about 15 gallons, is half full, how many miles can the car travel before it runs out gas?

150 miles

Step-by-step explanation:

80:4=20 that is how many miles the car can run with one gallon and than multiply that by 7.5 which is half of 15 and you get 150 miles

x is variable or an unknown value to find

example:

2x = 5 which means x = 3

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step-by-step explanation:

the x's and the y's both go up the same amount each time, therefore it will be a linear function because it will go in a straight line when drawn on a graph.

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