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Rational and Irrational Numbers Videos 2 videos
GED Math 1.5 Rational Numbers. How many customers did Alexis meet in person?
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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