document.write( "Question 809324: A student computed the average of her 7 test scores by adding the scores together and dividing this total by the number of tests. The average was 87. On her next test, she scored a 79. What is her new test average, and how do you figure it out? \n" ); document.write( "
Algebra.Com's Answer #487539 by TimothyLamb(4379)![]() ![]() You can put this solution on YOUR website! avg_of_seven = 87 \n" ); document.write( "--- \n" ); document.write( "avg_of_eight = ( avg_of_seven*7 + 79 )/8 \n" ); document.write( "Answer: \n" ); document.write( "avg_of_eight = (87*7 + 79 )/8 = 86 \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( " |