document.write( "Question 792973: A plane can fly 300 miles in the same time as it takes a car to go 210 miles. If the car travels 60 mph slower than the plane, find the speed of the plane. Please help me figure out the formula. \n" ); document.write( "
Algebra.Com's Answer #480201 by ankor@dixie-net.com(22740)\"\" \"About 
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let s = speed of the plane
\n" ); document.write( "then
\n" ); document.write( "(s-60) = speed of the car
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\n" ); document.write( "Write a time = dist/speed
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\n" ); document.write( "\"300%2Fs\" = \"210%2F%28%28s-60%29%29\"
\n" ); document.write( "you can solve this by cross multiplying
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