document.write( "Question 924723: a family has two cars. The first car has a fuel efficiency of 20 miles per gallon of gas and the second has a fuel efficiency of 30 miles per gallon of gas. During one particular week, the two cars went a combined total of 1150 miles for a total gas consumption of 45 gallons. How many gallons were consumed by each of the two cars that week?\r
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Algebra.Com's Answer #561044 by TimothyLamb(4379)![]() ![]() You can put this solution on YOUR website! x = miles driven by car a \n" ); document.write( "y = miles driven by car b \n" ); document.write( "--- \n" ); document.write( "(1/20)x + (1/30)y = 45 \n" ); document.write( "x + y = 1150 \n" ); document.write( "--- \n" ); document.write( "put the system of linear equations into standard form \n" ); document.write( "--- \n" ); document.write( "0.05x + 0.033333y = 45 \n" ); document.write( "x + y = 1150 \n" ); document.write( "--- \n" ); document.write( "copy and paste the above standard form linear equations in to this solver: \n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php \n" ); document.write( "--- \n" ); document.write( "solution: \n" ); document.write( "x = miles driven by car a = 400 miles \n" ); document.write( "y = miles driven by car b = 750 miles \n" ); document.write( "--- \n" ); document.write( "mpg = m/g \n" ); document.write( "g = m/mpg \n" ); document.write( "--- \n" ); document.write( "answer: \n" ); document.write( "gallons consumed by car a = 400/20 = 20 gallons \n" ); document.write( "gallons consumed by car b = 750/30 = 25 gallons \n" ); document.write( "--- \n" ); document.write( "Solve and graph linear equations: \n" ); document.write( "https://sooeet.com/math/linear-equation-solver.php \n" ); document.write( "--- \n" ); document.write( "Solve quadratic equations, quadratic formula: \n" ); document.write( "https://sooeet.com/math/quadratic-formula-solver.php \n" ); document.write( "--- \n" ); document.write( "Solve systems of linear equations up to 6-equations 6-variables: \n" ); document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php \n" ); document.write( " |