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Mathematics 13 Online
OpenStudy (anonymous):

FAN + MEDAL! You purchase an item that costs $35.  With sales tax, your total is $36.75.  Then you realize you have a $10 discount coupon.  How much will your new total be including tax?

OpenStudy (sleepyjess):

We need to find the percentage of sales tax first. Do you know how to do that?

OpenStudy (anonymous):

not really, no :/

OpenStudy (sleepyjess):

Ok, we need to use the equation 35*x=36.75 Do you understand that part?

OpenStudy (anonymous):

I just divided the two of them to find the missing variable and got 1.05. Is that correct?

OpenStudy (sleepyjess):

Yep

OpenStudy (anonymous):

Okay! So what's next?

OpenStudy (sleepyjess):

Ok, so now we have the $10 discount. That means the item now only costs $25. To find the total price, what do you think we will multiply 25 by?

OpenStudy (anonymous):

Not exactly sure..

OpenStudy (sleepyjess):

We need to multiply it by the sales tax

OpenStudy (anonymous):

So, it'd be $26.25?

OpenStudy (sleepyjess):

yep

OpenStudy (anonymous):

Alright. Thank you so so much!

OpenStudy (sleepyjess):

No problem! :)

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