A student has a mean score of five tests taken. What score must she obtain on her next test to have a mean average of 88 on all six tests?
You didn't post the mean score of the five.
88=(5*meanscore + 1*SCORE)/6
solve for score
To find the score the student must obtain on her next test, we can use the concept of averages.
We know that the mean average of the six tests should be 88.
Let's denote the score the student must obtain on her next test as "x".
The sum of the scores on the six tests would be the mean average (88) multiplied by the number of tests (6), which is 528 (88 x 6 = 528).
Now, we can set up an equation to solve for "x":
(5 tests total + x) / 6 tests = 88 (mean average)
Multiply both sides of the equation by 6 to eliminate the denominator:
5 tests total + x = 528
Subtract 5 from both sides of the equation:
x = 528 - 5
Simplifying, we find:
x = 523
Therefore, the student must obtain a score of 523 on her next test to have a mean average of 88 on all six tests.