Reasoning: Krishan wants his quiz average to be at least 90 so that he can get an A in the class. His current quiz scores are: 80, 100, 85. What does he have to get on his next quiz to have an average of 90?
A. 85
B. 90
C. 92
D. 95

D. 95

Step-by-step explanation:

The average is also known as the mean. To find the mean, you need to add all the values, then divide them by the number of terms:

1 2 3

1+2+3

6/3=2

The mean for the example would be 2. Now, using your values, you can use the options to see which one gives you an average of 90:

A.) 85

B.) 90

C.) 92

D.) 95

The next score on the quiz needs to be 90 for the mean to be 90.

$35.59 in pounds

step-by-step explanation:

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square