document.write( "Question 968959: 26 inch diameter tire
\n" ); document.write( "How many revolutions per minute do the tires make when the truck is traveling 55 miles per hour?\r
\n" ); document.write( "\n" ); document.write( "I get 711 but the back of the book has 770 I can't tell what I did wrong
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Algebra.Com's Answer #592015 by ankor@dixie-net.com(22740)\"\" \"About 
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26 inch diameter tire
\n" ); document.write( "How many revolutions per minute do the tires make when the truck is traveling 55 miles per hour?
\n" ); document.write( "I get 711 but the back of the book has 770 I can't tell what I did wrong
\n" ); document.write( ":
\n" ); document.write( "Let's see what the speed is with 770 rpm
\n" ); document.write( "\"%28pi%2A26%2A770%2A60%29%2F%2812%2A5280%29\" = 59.56 mph not 55; the book is wrong,
\n" ); document.write( ":
\n" ); document.write( "Try the same equation using 711 for the rpm, you will get 55, or very close
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