document.write( "Question 815556: The grade of a highway up a hill is 20%. How much change in a horizontal distance is there if the vertical height of the hill is 80 feet?
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Algebra.Com's Answer #491037 by TimothyLamb(4379)![]() ![]() You can put this solution on YOUR website! g = 100 * rise / run \n" ); document.write( "--- \n" ); document.write( "g = 100 * rise / run \n" ); document.write( "20 = 100 * 80 / run \n" ); document.write( "20 = 8000 / run \n" ); document.write( "-- \n" ); document.write( "run = 8000 / 20 \n" ); document.write( "run = 400 ft \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( " |