document.write( "Question 927074: Two airplanes leave the Atlanta airport at the same time traveling in opposite directions. One plane travels 30 miles per hour faster than the other. After 3 hours, the planes are 3150 miles apart. What is the rate of each plane? \n" ); document.write( "
Algebra.Com's Answer #562667 by TimothyLamb(4379)\"\" \"About 
You can put this solution on YOUR website!
x = speed airplane one
\n" ); document.write( "y = speed airplane two
\n" ); document.write( "y = x + 30
\n" ); document.write( "---
\n" ); document.write( "s = d/t
\n" ); document.write( "---
\n" ); document.write( "relative speed of the two airplanes:
\n" ); document.write( "x + y = 3150/3
\n" ); document.write( "x + x + 30 = 3150/3
\n" ); document.write( "2x = 3150/3 - 30
\n" ); document.write( "x = (3150/3 - 30 )/2
\n" ); document.write( "---
\n" ); document.write( "answer:
\n" ); document.write( "x = 510 mph
\n" ); document.write( "y = 510 + 30 = 540 mph
\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( "Convert fractions, decimals, and percents:
\n" ); document.write( "https://sooeet.com/math/fraction-decimal-percent.php
\n" ); document.write( "---
\n" ); document.write( "Calculate and graph the linear regression of any data set:
\n" ); document.write( "https://sooeet.com/math/linear-regression.php \n" ); document.write( "
\n" );