document.write( "Question 810589: a jar has $3.60 in nickels and quarters. There are 28 coins in all. How many of each coin is in the jar? \n" ); document.write( "
Algebra.Com's Answer #488261 by TimothyLamb(4379)![]() ![]() You can put this solution on YOUR website! 5n + 25q = 360 \n" ); document.write( "n + q = 28 \n" ); document.write( "q = 28 - n \n" ); document.write( "--- \n" ); document.write( "5n + 25q = 360 \n" ); document.write( "5n + 25(28 - n) = 360 \n" ); document.write( "5n + 700 - 25n = 360 \n" ); document.write( "340 = 20n \n" ); document.write( "--- \n" ); document.write( "n = 17 \n" ); document.write( "q = 11 \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( " |