Given scores of 20,30, what should the next score be in order to attain an average score of 40?
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Given 2 scores of 20, 30, what should be score number 3 in order to attain an average score of 40?
Setup Average Equation:
Average =
Sum of our 2 numbers + unknown score of x
Total Numbers
40 =
20 + 30 + x
3
Cross Multiply
20 + 30 + x = 40 x 3 x + 50 = 120
Subtract 50 from both sides of the equation to isolate x:
x + 50 - 50 = 120 - 50
x = 70
You have 2 free calculationss remaining
What is the Answer?
x = 70
How does the Missing Average Calculator work?
Free Missing Average Calculator - Given a set of scores and an average, this calculates the next score necessary to attain that average This calculator has 2 inputs.
What 1 formula is used for the Missing Average Calculator?
Average = (your Sum of all numbers + unknown score of x)/Total Numbers
What 3 concepts are covered in the Missing Average Calculator?
average
A number expressing the central value of a set Sum of Values/n
missing average
A score or rank required to reach a certain average
number
an arithmetical value, expressed by a word, symbol, or figure, representing a particular quantity and used in counting and making calculations and for showing order in a series or for identification. A quantity or amount.
Example calculations for the Missing Average Calculator