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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 1.5 Rational Numbers 289 Views
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Description:
GED Math 1.5 Rational Numbers. How many customers did Alexis meet in person?
Transcript
- 00:00
Thank you We sneak in and here's your smoke to
- 00:05
your brought to you by car dealerships and you thought
- 00:08
peer pressure was tough All right alexis owns a car
- 00:10
dealership On average she sells a car to six sevenths
- 00:13
of the customers who she meets in person If she
Full Transcript
- 00:17
sold twenty four cars last week then how many customers
- 00:20
did she meet in person and here the potential answers
- 00:27
So alexis owns car dealership Good for alexis and her
- 00:30
father told her she'd never amount to anything She's selling
- 00:33
a car Two six seven silver customers In other words
- 00:35
she's sweet talking six out of every seven potential buyers
- 00:38
into driving off a lot in a new ride That's
- 00:40
Pretty decent rate We have to assume he's really good
- 00:43
at getting out of parking tickets too Now a question
- 00:46
wants to know at her average rate of sale How
- 00:48
many customers did she meet in person if she sold
- 00:51
twenty four hearts So the easiest way to deal with
- 00:53
a problem like this is yeah just throw out the
- 00:55
ratio with proportion Well we know that for every six
- 00:58
customers who bought a car there was one who said
- 01:01
nothing of twenty four of them cave How many were
- 01:05
unimpressed We can say that six is this seven equals
- 01:09
twenty four over something and we'll cleverly call that something
- 01:13
acts rather than something And alec and cross multiply six
- 01:18
times X equals twenty four times seven Got it while
- 01:21
twenty four seven hundred sixty eight Six x equals one
- 01:26
hundred sixty eight and we divide both sides by six
- 01:30
Got acts on this side and then six sixteen well
- 01:34
with over x equals twenty eight Don't make sense If
- 01:39
you think about it you alexis get six yeses to
- 01:42
everyone No then when she has four times as many
- 01:46
yeses twenty four should have four times as many nose
- 01:50
and indeed she does So our answer is c twenty
- 01:53
eight but don't let alexis persuade you otherwise She'll talk 00:01:56.598 --> [endTime] you into choosing d we just know it
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