document.write( "Question 1088007: A building needs a ramp to make it handicap accessible. By​ law, the ramp must run 10 inches horizontally for every 1 inch of rise. If the surface of the ramp is 79 inches long how far above the ground is the inclined end of the ramp? Round to the nearest tenth of an inch. \n" ); document.write( "
Algebra.Com's Answer #702303 by ankor@dixie-net.com(22740)\"\" \"About 
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A building needs a ramp to make it handicap accessible
\n" ); document.write( " By​ law, the ramp must run 10 inches horizontally for every 1 inch of rise.
\n" ); document.write( " If the surface of the ramp is 79 inches long how far above the ground is the inclined end of the ramp?
\n" ); document.write( " Round to the nearest tenth of an inch.
\n" ); document.write( ":
\n" ); document.write( "let r = the height of the ramp
\n" ); document.write( "then
\n" ); document.write( "10r = the horizontal distance
\n" ); document.write( ":
\n" ); document.write( "The ramp is the hypotenuse of the triangle formed by the horizontal and rise
\n" ); document.write( "r^2 + (10r)^2 = 79^2
\n" ); document.write( "r^2 + 100r^2 = 6241
\n" ); document.write( "101r^2 = 6241
\n" ); document.write( "r^2 = 6241/101
\n" ); document.write( "r^2 = 61.792
\n" ); document.write( "r = \"sqrt%2861.792%29\"
\n" ); document.write( "r = 7.86 ~ 7.9 inches above the ground \n" ); document.write( "
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