document.write( "Question 816022: It's 9 dollars and 45 cents in a jar. It's 65 coins and only nickles and quarters. How many quarters are there and how many nickles are there? \n" ); document.write( "
Algebra.Com's Answer #491309 by TimothyLamb(4379) You can put this solution on YOUR website! 5n + 25q = 945 \n" ); document.write( "n + q = 65 \n" ); document.write( "q = 65 - n \n" ); document.write( "--- \n" ); document.write( "5n + 25q = 945 \n" ); document.write( "5n + 25(65 - n) = 945 \n" ); document.write( "5n + 1625 - 25n = 945 \n" ); document.write( "20n = 680 \n" ); document.write( "--- \n" ); document.write( "n = 34 \n" ); document.write( "q = 31 \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( " |