Posted by Chuck on Monday, November 19, 2007 at 9:20pm.
A car gets 21 mi/gal in city driving and 28 mi/gal highway driving. If 18 gal of gas are used in traveling 448 mi, how many miles were driven in the city, how many driven on the highway (assuming that only the given rates of usage were actually used)?

Math  Linear Equations  tchrwill, Monday, November 19, 2007 at 9:54pm
A car gets 21 mi/gal in city driving and 28 mi/gal highway driving. If 18 gal of gas are used in traveling 448 mi, how many miles were driven in the city, how many driven on the highway (assuming that only the given rates of usage were actually used)?
H = highway gallons and C = city gallons.
Then,
H + C = 18 and
21C + 28H = 448.
I suspect you can take it from here.
Answer This Question
Related Questions
 Math  The Honda Civic Hybrid vehicle, powered by gasolineelectric technology, ...
 Math help!  A car goes 18 miles on a gallon of gas in city driving and 24 miles...
 Math  According to a rating agency, a car's MPG (miles per gallon) ratings are...
 Math  According to a rating agency, a car's MPG (miles per gallon) ratings are...
 Math  According to a rating agency, a car's MPG (miles per gallon) ratings are...
 Math  Omar owns a car and a moped. He can afford 12 gal of gasoline to be split...
 calculus  An automobile computer gives a digital readout of fuel consumption in...
 math  Convert → 14 qt _____ gal. Choose the best answer from the ...
 math  LPG (liquedfied petroleum gas) is stored in highly insulated spherical ...
 algebra  car averages 20 miles per gallon of gas in city driving and 30 miles ...
More Related Questions