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kondor19780726 [428]
4 years ago
14

A car uses 30 gallons of gasoline for a trip of 800 miles. How many gallons would

Mathematics
2 answers:
pychu [463]4 years ago
8 0

Answer: 26.25

Step-by-step explanation; let X represent the unknown

If 30=800

X=700

Cross multiply

=> 800X = 30 × 700

=> X = (21000)/800

=> X=26.25

atroni [7]4 years ago
6 0

Quantity of gasoline needed by a car to run 800 miles = 30 gallons

Quantity of gasoline needed by a car to run 1 mile =

= 30 ÷ 800

= 0.0375 gallons

So , to run 1 mile a car would need = 0.0375 gallons of oil

To run 700 miles the quantity of gasoline needed =

= 700 × 0.0375

= 26.25 gallons of gasoline

Therefore , a car will use 26.25 gallons of gasoline on a trip of 700 miles .

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