anonymous
  • anonymous
Can someone help me figure this out? I thought the average might be percent wise but when I did the problem I got lost.. http://prntscr.com/7e99e0
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
@divu.mkr
anonymous
  • anonymous
@Learner11
anonymous
  • anonymous
idk sorry

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anonymous
  • anonymous
bating average is something like how many average hit you will make of each throw like as if you were thrown of 4 ball and you were able to hit only one then you bating average will be 0.25 you have just multiply the batting average to the total number of ball to get successful hits
anonymous
  • anonymous
ooh
anonymous
  • anonymous
could you explain to me how to set it up?
anonymous
  • anonymous
@Learner11
phi
  • phi
The idea is to "interpret" this line: batting average is a ratio of hits to times at bat we can write a ratio as a fraction \[ batting\ avg = \frac{hits}{times\ at\ bat} \]
phi
  • phi
Once you get that idea, you read the problem for info. Do we know the batting average (as a number) ? do we know the number of hits or the times at bat? any ideas?
anonymous
  • anonymous
So I turn the a verage into a fraction and then do proportion?
phi
  • phi
you see the "equation" I posted ? replace the "words" with numbers (as much as you can, from reading the problem) can you do that ?
anonymous
  • anonymous
Yeah
phi
  • phi
what do you get ?
anonymous
  • anonymous
.320 = x/25 ?
phi
  • phi
yes. now we need to find "x" (i.e. number of hits) to "solve for x" the trick is to multiply both sides by 25, like this \[ 0.320 \cdot 25 = \frac{x}{25} \cdot 25 \]
anonymous
  • anonymous
x=8
phi
  • phi
on the right side the 25/25 is 1 (cancels out)
phi
  • phi
yes, number of hits is expected to be 8
anonymous
  • anonymous
Would it also work if I turned .320 into a fraction and crossed multiplied?
anonymous
  • anonymous
with x/25
phi
  • phi
yes, you can cross multiply. you could write 0.320 as 0.320/1 or 320/1000 or 32/100 I remember liking cross multiplying (easy to remember), but it's faster to do it the way I showed (and the way you will learn to solve equations if you take more math classes)
anonymous
  • anonymous
Oh I see :3 I just asked because that's what I was being taught at the moment. But I understand now ^.^
anonymous
  • anonymous
Thank you so much c:
phi
  • phi
yw

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