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TSI Math: Dividing the Parts by the Whole 3 Views


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Description:

A lawnmower uses fuel that contains a ratio of 31 parts gasoline for every 1 part of oil. How much oil is in 384 ounces of fuel?


Transcript

00:03

Okay sy masked members last in this siri's ah lawnmower

00:07

uses fuel that contains a ratio of thirty one parts

00:10

gasoline for everyone Part of oil How much oil is

00:13

in three hundred eighty four ounces of fuel This ain't

00:20

one of those vintage push really lawnmowers People actually needs

00:24

fuel not just blood sweat and tears The fuel contains

00:27

both gasoline and oil so there are thirty one plus

00:30

one equals thirty two parts fuel for everyone part of

00:34

oil you got to be careful about that When you

00:36

cross multiply we'll divide in the hole by the number

00:39

of parts in the whole gives us three eighty four

00:42

divided by thirty two is twelve ounces of oil in

00:45

the fuel and no they throw this vicious curveball in

00:48

the form of letters C here twelve point four if

00:51

you incorrectly divided by thirty one instead of thirty two

00:54

that would be very very wrong All right but we

00:57

have three hundred eighty four ounces of gasoline and oil

01:00

mixed together so the

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