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Mathematics 19 Online
OpenStudy (anonymous):

Help with sales tax pleaase??

OpenStudy (anonymous):

A washing machine normally selld for $650. Part A During a holiday sale, each washing machine is marked down 20%. How much will it cost to buy the washing machine during the sale?

OpenStudy (sleepyjess):

Ok, how do you think you would get the amount that it is off?

OpenStudy (anonymous):

umm im not sure but i know it has to do with markdown like 20% change it to decimal?

OpenStudy (sleepyjess):

Yep, what is 20% as a decimal?

OpenStudy (anonymous):

20% is \[\frac{1}{5}\] if im getting 20% off, i'd only have to pay \[\frac{4}{5}\] the original price, how cool is that!

OpenStudy (anonymous):

0,20

OpenStudy (sleepyjess):

Yes, so 650*.2

OpenStudy (anonymous):

is that all you have to do??

OpenStudy (sleepyjess):

that is the amount off, then 650(original amount) - whatever 650*.2 is

OpenStudy (anonymous):

\[\frac{4}{5} \times 650\]

OpenStudy (sleepyjess):

^^^ that works too

OpenStudy (anonymous):

okay so its $520

OpenStudy (sleepyjess):

Yes! :D

OpenStudy (anonymous):

excellent

OpenStudy (anonymous):

theres other 2 parts :/

OpenStudy (sleepyjess):

Ok :)

OpenStudy (anonymous):

we can help but no point really if YOU don't understand it...

OpenStudy (anonymous):

There is a delivery fee of $39 added to the sale price. What percent of the sale price is the delivery fee?

OpenStudy (sleepyjess):

percent = delivery fee/sale price

OpenStudy (anonymous):

What is the sale price?

OpenStudy (anonymous):

i think it means 39 divided by 130??

OpenStudy (sleepyjess):

The sale price is what we just found

OpenStudy (anonymous):

so 39 divided by 520?

OpenStudy (anonymous):

\[\frac{39}{520}\times 100\]

OpenStudy (anonymous):

so its 39 over 5.2?

OpenStudy (sleepyjess):

39/520, then move the decimal to the right 2 places

OpenStudy (anonymous):

okay so its $52

OpenStudy (anonymous):

7.5%

OpenStudy (anonymous):

Don't worry your self too much over this, this is really basic, you'll learn such kind of stuff in no time as you grow up...

OpenStudy (anonymous):

thanks @Nishant_Garg

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