Your test scores in reading class or 68, 85, 88, blank and 100%. What is the missing test score if you're mean average is an 84%
1 answer:
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Answer:
See it in the pic.
Step-by-step explanation:
See it in the pic.
First, let's turn all the numbers into improper fractions so that we can find the answer easier.
-2 = r -
- = r -
Now we have to isolate 'r'.
First, we have to make sure that the variable is on one side and all the numbers are on the other side.
To do this, we have to add to both sides.
In order to do this, we need to ensure that both fractions have a common denominator.
- = r -
Ensure that the denominators are the same:
= r -
+
= r
= r
Good luck!