Giving For Correct Answer Chandra had scores of 100, 70, and 85 on three of her five tests. She cannot remember her two other scores, which were both the same. She does remember that the mean of the five scores is 75. Which statement below explains how to find the two missing scores?

Add the sum of the three test scores to the product of 75 and 5.

Subtract the sum of the three test scores from the product of 75 and 5.

Add the sum of the three test scores to the product of 75 and 5, and then double the result.

Subtract the sum of the three test scores from the product of 75 and 5, and then divide the result by 2.

Subtract the sum of the three test scores from the product of 75 and 5, and then divide the result by 2.

Step-by-step explanation:

From the question:

100, 70, 85 on three of her five tests

Total number of test = 5

mean of the five scores is 75

mean = average of the five scores

Average score = Total score / total number of test

Total score = Average score * total number of test

= 75*5 =375

to find remaining two tests' scores

Total score - the 3 scores from question

= 375 - 100 - 70 - 85

=120

If u want to find the score of each of the unknown test

From question:

She could not remember the other two scores, which were the same.

Thus,

The score of one test

= 120/ 2

=60

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1