document.write( "Question 810323: a mathematics instructor asserted that students test grades are directly proportional to the amount of time spend studying. Brent studies for 15hr for a final exam and got a score of 75. At this rate , waht score would he have recieved if he studied for 18 hr? \n" ); document.write( "
Algebra.Com's Answer #488074 by TimothyLamb(4379)![]() ![]() You can put this solution on YOUR website! 15/75 = 18/s \n" ); document.write( "s = 75(18/15) = 90 \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( " |