narissa
  • narissa
PLEASE HELP!! Suppose you pay $88 for a pair of shoes that has been discounted 20%. What is the original price of the shoes before the discount? Step 1. identify the unknown variable Step 2 set up a proportion that represents the problem Step 3 solve the proportion showing all work! Step 4 clearly state your answer in a complete sentence.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
schrodinger
  • schrodinger
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anonymous
  • anonymous
ok what are you trying to find exactly? that is where to start: pick a variable and say what it represents
narissa
  • narissa
x would be my variable it represents the original price of the shoes
anonymous
  • anonymous
ok good

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anonymous
  • anonymous
then you do not know what x is, but you know what 80% of x is , since if you get a 20% discount you pay \(100%-20%=80\%\) of the price
anonymous
  • anonymous
btw answer above is a common (but unfortunately completely wrong) way to do it
anonymous
  • anonymous
lets continue, see if we can get the right answer
anonymous
  • anonymous
since \(80\%\) of \(x\) is what you know, namely $88 you can write an equation \[0.8x=88\] and solve that by dividing both sides by \(.8\)
narissa
  • narissa
11
anonymous
  • anonymous
no \(88\div 8=11\) but \(88\div .8\neq 11\)
anonymous
  • anonymous
do you know how to divide by \(.8\)?
narissa
  • narissa
its 0.1
anonymous
  • anonymous
oooh i see, it said "Step 2 set up a proportion that represents the problem" you want a proportion use \[\frac{80}{100}x=88\]
anonymous
  • anonymous
oh dear no, it is not .1 let me know show you how to divide by a decimal \[88\div 0.8=880\div8=110\]

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