A student needs at least a 95% average to receive a grade of A. On the first three tests, the student averaged 92%. What must the student average on the last 2 tests to recieve an A?
A student needs at least a 95% average to receive a grade of A. On the first three tests, the student averaged 92%. What must the student average on the last 2 tests to recieve an A?
95 X 5 =475 Total grades needed in 5 tests.
475 - (92 X 3) =199 total grades needed for the last 2 tests,
199/2=99.5 the student must average in the last 2 tests. So that:
[(92 X 3) + (99.5 X 2)] / 5=95% average grade in 5 tests.
A student needs at least a 95% average to receive a grade of A. On the first three tests, the student averaged 92%. What must the student average on the last 2 tests to recieve an A?
95 X 5 =475 Total grades needed in 5 tests.
475 - (92 X 3) =199 total grades needed for the last 2 tests,
199/2=99.5 the student must average in the last 2 tests. So that:
[(92 X 3) + (99.5 X 2)] / 5=95% average grade in 5 tests.
