A new energy efficient car travels 720 miles on 12 gallons of gas. How many gallons would be used on a 1000 mile trip
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=50/3
:720÷12=1000÷
, 0 x=0 not equal
reduce the fraction 60=1000/x
multiply both sides of the equation by the common denominator :60x=1000x/x
reduce the fractions:60x=1000
divide both sides of the equation by coifficient of variable:x=1000/60
cross out the common factor:x=50/3
find the intersection:x=50/3
get the result:x=50/3
ANSWER:X=50/3
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