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GED Math Videos 69 videos
GED Math: Graphs and Functions Drill 5, Problem 5. What is the value of a?
GED Math: Measurement Drill 1, Problem 1. The area, in square inches, of the shaded region where the two rectangles overlap is...what?
GED Math 1.1 Graphs and Functions. Which is the appropriate region of the coordinate plane?
GED Math 2.2 Expression and Equations 340 Views
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Description:
GED Math 2.2 Expression and Equations. If a shirt is on sale for $12 then how much did it cost before the sale?
Transcript
- 00:03
Here's your Shmoop dujour, brought to you by Gigantomart.
- 00:08
It seriously has everything, including a Walmart and a Target.
- 00:32
We could call our Aunt Flo, and she'd able to answer this for us in about two seconds...
- 00:37
because that woman knows her way around a sale.
- 00:40
But we'd rather not get roped into another hour-long discussion about her gout,
Full Transcript
- 00:44
so let's try and go it alone.
- 00:46
Here's this shirt. It used to cost $X. That's what we're trying to find.
- 00:51
It went on sale for 35% off the regular price.
- 00:54
It now costs only $12.
- 01:07
We know we can write percents as decimals, something that would be really helpful in this instance.
- 01:11
So we can also express this equation as X - 0.35X = 12.
- 01:27
Our handy dandy calculator tells us that
- 01:31
12 over 0.65 equals 18.46,
- 01:34
which is our answer choice C.
- 01:37
As in, come help me with my gout.
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