anonymous
  • anonymous
after a 30% reduction, you purchase a new soda on sale for 315. what was the original price of the sofa?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
315*(1-.3)=original price =220.5
anonymous
  • anonymous
x - 30/100 = 315 x = 315 + 30/100 x = ?
anonymous
  • anonymous
oops I think I did that wrong

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anonymous
  • anonymous
x*(1-.3)=315 x=450
anonymous
  • anonymous
how did u get 450 cause i got 409.5
anonymous
  • anonymous
blender is right
anonymous
  • anonymous
x=315/.7 7 into 31 4 times 7*4=28 remainder: 3, drop the 5 7 into 35, 5 times
anonymous
  • anonymous
i am confused
anonymous
  • anonymous
About which part, setting up the equation, reducing the equation, or dividing 315 by .7?
anonymous
  • anonymous
pretty much all of it
anonymous
  • anonymous
Ok we can go through it slowly. First, we now that the product x was reduced by 30%. This means that originally we had some x and muliplied it by .3 to get the discount. Instead of doing this separately, we take 70% of the original x to find the discounted price. So that is .7x, which we know to be equal to 315. Then just divide .7 on each side (remember % is just a fancy way of saying that number per (divided by) cent (100).
anonymous
  • anonymous
Does that make more sense?
anonymous
  • anonymous
yeah now it does
anonymous
  • anonymous
Cool, goodluck with your math final, I gotta go study myself. you can message me on aim (ooblender) if you have any urgent questions.
anonymous
  • anonymous
i have yahoo sorry
anonymous
  • anonymous
zblender89@yahoo

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