Allison Welch bought a computer game for $40. The game was discounted 20%. What was the regular price of the game?
2 Answers
Explanation:
We should start off by making an equation.
x is the original price of the game, and 80% of the original or 20% off of the original.
We then divide both sides by
You should get
Plug in 50 into the equation and you should get 40.
-Sakuya
Original price was
Explanation:
For an in-depth explanation of what percentage is see this example:
https://socratic.org/s/aK9mhH3Z
Let the original price be
Then:
new price = original price - 20% of original price
This is the same as:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Note that the shortcut method is just remembering the end effect of first the principle method
Move the
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
If we can turn the
Multiply both sides by
So
but
But this is in dollars
Original price was