anonymous
  • anonymous
percent of increase 120 to 200
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
40
Hero
  • Hero
You're still trying to figure these out @AngelDreamGurl ?
anonymous
  • anonymous
YES *puppy dog face* LOL

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Hero
  • Hero
What seems to be the trouble with following the formula I gave you?
anonymous
  • anonymous
its kind of confusing
Hero
  • Hero
What exactly is so confusing about it? All you do is plug in the numbers
anonymous
  • anonymous
what is the formula, Hero? Wish I had one of those when I was in school
Hero
  • Hero
\[\% \Delta = \frac{|a - b|}{a} \times 100\] a = old number b = new number
anonymous
  • anonymous
on this one, I would say to myself, self, 80 is what percent of 120?
Hero
  • Hero
applying absolute value symbols are important for this one
anonymous
  • anonymous
yes, and those are some daunting symbols if you aren't in precalc or beyond
Hero
  • Hero
\[\% \Delta = \frac{|120 - 200|}{120} \times 100\]
anonymous
  • anonymous
66.6
anonymous
  • anonymous
OHHHHHHHHHHHHHHHHHHHHHH i missed the absolute value sign
Hero
  • Hero
\[\% \Delta \space \text{= percent change}\]
Hero
  • Hero
There's nothing daunting about that
anonymous
  • anonymous
delta and the absolute value signs are... at first
Hero
  • Hero
@tutor_guy , did you want to say something? Probably to dispute my formula
anonymous
  • anonymous
No, I actually gave @AngelDreamGurl similar formula as yours. :)))
anonymous
  • anonymous
that's the formula all right, been using it over 50 years now, just never saw it written formally like that before. I just knew that increase was change/start
anonymous
  • anonymous
and that percent always mean to divide by 100

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