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Mathematics 8 Online
OpenStudy (anonymous):

Will medal and fan!

OpenStudy (anonymous):

OpenStudy (anonymous):

@Atsie

OpenStudy (anonymous):

@whpalmer4

OpenStudy (whpalmer4):

find the price for each option. which is lowest/

Atsie (atsie):

Which looks like the lowest price to you? @OpenStudier0

OpenStudy (anonymous):

A

OpenStudy (whpalmer4):

option A is $8.99 option B is more, but you get a rebate of $5. what does it cost after you account for getting $5 back?

OpenStudy (anonymous):

7.75?

OpenStudy (whpalmer4):

yes. A doesn't look like the best deal any longer, does it?

OpenStudy (whpalmer4):

now we have to figure out the price of option C. What is 15% of $11.49?

OpenStudy (whpalmer4):

we will subtract that amount from the regular price of $11.49 and compare the result with the $7.75 cost of option B

OpenStudy (anonymous):

9.7665?

OpenStudy (anonymous):

or is it 9.8

OpenStudy (whpalmer4):

10% of 11.49 = 1.15 5% = 1/2 of 10% = 0.58 15%= 1.73 11.49-1.73=10.76 option B is best price

OpenStudy (anonymous):

Thank you so much!

OpenStudy (whpalmer4):

not actually necessary to find option C'a price exactly, so long as you can estimate it and be sure it is more expensive. 20% is easy to calculate, and if the price after a 20% discount is still higher, no need to know what price after a 15% discount is to the last cent, right? 20% of 11.49 = 2.30, and 11.49-2.30 = 9.19, which is still much more than 7.75

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