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Mathematics 4 Online
OpenStudy (anonymous):

The regular price of a sweater is $32. For a sale, the price of the sweater is marked down 30%. What is the sale price of the sweater?

OpenStudy (holly00d1248):

28.8

OpenStudy (anonymous):

thanks but can you tell me how you got that answer?

OpenStudy (anonymous):

i need to show work

OpenStudy (misty1212):

HI!!

OpenStudy (anonymous):

hey !!

OpenStudy (misty1212):

if you get \(30\%\) off you pay \(100\%-30\%=70\%\) of the price

OpenStudy (misty1212):

\(70\%\) of \(32\) is \(0.7\times 32\)

OpenStudy (misty1212):

a calculator will to that quickly or you can multiply by hand if you like

OpenStudy (anonymous):

okay i get it now thank you but after you multiply 0.7 x 32 thats the answer?

OpenStudy (misty1212):

i get \[\$22.40\] http://www.wolframalpha.com/input/?i=.7*32

OpenStudy (misty1212):

yesh

OpenStudy (anonymous):

thank you !!

OpenStudy (misty1212):

\[\color\magenta\heartsuit\]

OpenStudy (misty1212):

btw you could also find \(0.3\times 32\) and then subtract the result from \(32\) but that is extra steps

OpenStudy (anonymous):

thank you again

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