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Description:
GED Math 5.4 Rational Numbers. How many gallons of custom color can Marcus create without buying any more paint?
Transcript
- 00:00
Thank you We sneak in and here's your smoke du
- 00:05
jour brought to you by house paint And how many
- 00:08
fifty shades of grey jokes do you think we thought
- 00:10
of putting in here but we couldn't because we're g
- 00:12
rated site all right marcus is painting his house with
Full Transcript
- 00:16
a custom paint color To create the color Marcus combines
- 00:19
one part white paint with two parts purple paint and
- 00:22
six parts blue paint If marcus has five gallons of
- 00:26
each of these three colors then how many gallons of
- 00:29
his custom color can you create without buying any more
- 00:31
paint And here your potential answers Okay well what is
- 00:37
this question asking Well our friend marcus wants to make
- 00:40
his house all nice and pretty but apparently doesn't trust
- 00:42
the good people at home depot to do is mix
- 00:44
and forum so he's winging it he's using one part
- 00:47
white paint two parts purple and six parts blue And
- 00:51
we need to know how many gallons he can create
- 00:53
his custom color if he has five gallons of each
- 00:58
All right Well the important thing recognizes that marx is
- 01:00
going to run out of blue way before he runs
- 01:02
out of either of the other two colors Alright so
- 01:05
his custom paint has nine total parts and six of
- 01:08
those air blue Then we can set up a proportion
- 01:11
with x as the total amount of paint marcus can
- 01:13
mix using five gallons of the blue We can put
- 01:16
the total over blue which is nine over six which
- 01:21
reduces tow three over to And we can set that
- 01:23
proportion equal Toe acts The total amount of paint over
- 01:26
Five Number of gallons of blue paint Marcus has got
- 01:30
it Five gallons Blute now it's Just a matter of
- 01:32
cross Multiply three times Five equals Two x thanks Alright
- 01:38
well three times five fifteen So fifteen equal to x
- 01:42
by both sides by two and exit polls Seven point
- 01:45
five which is how many gallons of the custom color
- 01:48
marcus can make before he goes well louis all right
- 01:52
option b and sorry we're gonna have to run We've
- 01:55
got to stop markets from trying to die His own 00:01:56.948 --> [endTime] hair just can't get enough So he's winging it
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