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Playlist Fractions and Decimals 14 videos

1
Pre-Algebra: Adding and Subtracting Fractions and Decimals
6156 Views

Worried about adding and subtracting fractions? Never fear. It's so easy that it will only take up a fraction of your time: just use multiplication...

2
Converting Decimals
1956 Views

This video explains how to convert between decimals, percents, and fractions. All three of these languages are just different ways of showing parts...

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Fractions Word Problems Example 511 Views


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Transcript

00:00

Thank you We sneak in and here's your smoke du

00:05

jour brought to you by gigante omar's it's seriously has

00:10

everything including a wal mart and target heart Gigantor mart

00:13

is having a sale Prices of all items in the

00:16

store had been reduced by thirty five percent If it's

00:20

shirts on sale for twelve bucks then how much did

00:23

it cost before the sale Before that This can right

00:27

here in central answers All right um okay well we

00:32

could call her aunt flo and she'd be able to

00:34

answer this force in about two seconds because that woman

00:38

knows her way around the sale but we'd rather not

00:41

get roped into another hour long discussion about her gout

00:43

So let's try and go it alone All right there's

00:47

This shirt It used to cost x dollars that's what

00:50

we're trying to find But it went on sale for

00:52

thirty five percent off the regular price and now costs

00:55

only twelve dollars So well we get x minus thirty

01:02

five percent of x is twelve You got that We

01:07

know we can write percent's decimals something that would probably

01:10

be really helpful in this instance so we can also

01:12

express this equation as x minus point three Five Acts

01:16

equals 12 well x minus point three Five Acts is

01:19

point 6:5 accent now by both sides by point six

01:22

five to get x equals twelve over point six five

01:27

and our handy dandy calculator tells us that twelve over

01:30

point six five equals eighteen point four Six Give or

01:34

take which is our answer choice c as in come

01:38

help me with my