Last week on an algebra test, the highest grade was 20 points less than 4 times the lowest grade. The sum of the two grades was 90. Find the lowest and highest grades on the test.
A) 68, 22
B) 158, 22
C) 68, 42
D) 68, 26

Question

Quizplus · Accepted Answer

The system of equations based on the given information is: H = 4L - 20 and H + L = 90. Solving these equations simultaneously, we find L = 22 and H = 68, making the lowest grade 22 and the highest grade 68.

Last Week on an Algebra Test, the Highest Grade Was