Salim gets grades of 79, 83, 86 and 89 on four math tests . What grade must he get on his fifth test to average 85 ?
Salim gets grades of 79, 83, 86 and 89 on four math tests . What grade must he get on his fifth test to average 85 ? Correct Answer 86
Let,fifth test grade is x,So average, 79+83+86+89+x=85*5=>337+x=425So, x= 88