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GED Math Videos 68 videos

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GED Math 5.4 Rational Numbers 190 Views


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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?

Language:
English Language

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

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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