A car travels 180 miles on 6 gallons of fuel. At the same rate, how many gallons are needed for a 255-mile trip?

A car travels 180 miles on 6 gallons of

Multiple choice — select the best answer

A8.5 gallons
B9.0 gallons
C9.5 gallons
D7.5 gallons

✓ Correct answer: A. 8.5 gallons The unit rate is 180 ÷ 6 = 30 miles per gallon; dividing 255 by 30 gives 8.5 gallons, using the proportional relationship distance = rate × gallons.

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A car travels 180 miles on 6 gallons of fuel. At the same rate, how many gallons are needed for a 255-mile trip?

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