Problema Solution
to get an A in a course you must have an average of at least 90 percent on four tests that have 1oo points each. If your sources on the first three tests were 87, 92, 84. What must you score on the fourth test to get an A for the course.
Answer provided by our tutors
you must score x on the fourth test to get an A for the course
The equation is
x + 87 + 92 + 84 = 90*4
x = 97
So you must score 97 on the fourth test to get an A for the course