anonymous
  • anonymous
Last week's gas prices at a local gas station decreased by 4% this Monday, but by this current weekend, they have increased by 8% The current price this weekend is _____ % of last week's prices before the changes.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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DanJS
  • DanJS
I would just say -4% + 8% but, The initial price P decreased by 4%, on monday the price was 0.96P You now increase the price on monday by 8%
anonymous
  • anonymous
Ok, but I don't get where the .96P comes from?
DanJS
  • DanJS
If you let the initial price be P, then the price on Monday will be 4% less, or 96% the original Price 0.96*P mondays price

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DanJS
  • DanJS
Not sure if they are asking, "but by this current weekend, they have increased by 8%" Is that 8% increase of the original Price, or the Price on Monday
anonymous
  • anonymous
The price on Monday
DanJS
  • DanJS
ok, then you increase mondays price - (0.96)P by 8% Price on weekend is 108% of 96% of the original Price New Price = (1.08)*(0.96)*P
DanJS
  • DanJS
So the new price is 1.0368*P or 103.68% of last weekend price P
DanJS
  • DanJS
increase overall of 3.68%
DanJS
  • DanJS
good?
anonymous
  • anonymous
Good. Thank you so much!!
DanJS
  • DanJS
welcome, anytime

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