anonymous
  • anonymous
Can someone plz help me? Im really stuck on this test. I've been on this test for about 3 hours.... I need help!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
I can try to help
anonymous
  • anonymous
Thank you, you dont have to give me the answers i just dont understand it so plz walk me through it.
anonymous
  • anonymous
1. Tess and Dan have $24.00 each to spend at a book fair, where all students receive a 15% discount. They both want to purchase a copy of the same book, which normally sells for $24.50 plus 10% sales tax. To check if she has enough to purchase the book, Tess takes 15% of $24.50 and subtracts that amount from the normal price. She takes 10% of the discounted selling price and adds it back to find the purchase amount. Dan takes 85% of the normal purchase price and then computes 110% of the reduced price. Is Tess correct? Is Dan correct? Do they have enough money to purchase the book? Explain your answer using complete sentences.

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More answers

anonymous
  • anonymous
okay so do you think Dan is correct for taking 85 percent of the normal purchase price and computing 110 percent of the purchase amount?
anonymous
  • anonymous
I am not sure but im going with not correct
anonymous
  • anonymous
good Job, thats right just to let you know and what about Tess?
anonymous
  • anonymous
Correct
anonymous
  • anonymous
Good Job you see you didnt even need help, but you still need to explain why
anonymous
  • anonymous
so try it out
anonymous
  • anonymous
yes, actually i guessed why are they wrong?
anonymous
  • anonymous
For tess you do 15% of 24.50..so now to do this this we do percent proportions right?
anonymous
  • anonymous
you just do 24.50 -15
anonymous
  • anonymous
that would be 9.5
anonymous
  • anonymous
plus 10 because of the tax
anonymous
  • anonymous
19.5
anonymous
  • anonymous
which is rounded to?
anonymous
  • anonymous
20
anonymous
  • anonymous
alright then thts it
anonymous
  • anonymous
ok thank you
anonymous
  • anonymous
np
anonymous
  • anonymous
So basicly all we did was subtract 24.50 from 15. Then add 10 and then round.
anonymous
  • anonymous
yeah but you cant explain it like that so simply, and you gotta explain why the other person is wrong
anonymous
  • anonymous
Ok can we go over why Dan is wrong?
anonymous
  • anonymous
sure
anonymous
  • anonymous
try and do percent proportions for that one
anonymous
  • anonymous
15% of 24.50 are these the numbers to so percent proportions?
anonymous
  • anonymous
If so then it would be 3.657
anonymous
  • anonymous
round
anonymous
  • anonymous
4
anonymous
  • anonymous
i dont know that answer sounds a little to low
anonymous
  • anonymous
oh ok what do think the answer is?
anonymous
  • anonymous
somethings off about it, i dont think i know that part its a little tricky
anonymous
  • anonymous
ok do you want to know what my friend said about this question?
anonymous
  • anonymous
yeah sure
anonymous
  • anonymous
$24.50 x 0.85 = $20.825 $20.825 x 1.10 = $22.9075 $22.9075 < $24.00, so then tess and dan have enough money for the books.
anonymous
  • anonymous
no that 20.825 doesnt multiply by 1.10 because in the question it says they both have 24.00 each and the books are 24.50, dan takes 85 percent of the normal price which is 24.50
anonymous
  • anonymous
Can't we just add all the number then add the the percents and subtract it?

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