On two of Mark's math tests, he scored 75 and 83. Mark wants to have a mean score of 84. What does Mark have to score on his next test to have a mean of 84?

94

Step-by-step explanation:

add 94, 75 and 83 to get 252, then divide by 3

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )