Question
Linda scores 72 on her first algebra test. What must she score on the second test if her average score on both tests is to be 81
Answers
Ms. Sue
(81 * 2) - 72 = ?
John
(72 +x)/2 =81
Multiply both sides by 2 and subtract 72 to get ...
81(2)-72
Multiply both sides by 2 and subtract 72 to get ...
81(2)-72
Nadine
90