Use a proportion to solve.
1. 75% of what number is 66?
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OpenStudy (anonymous):
Star let me see how u would set up your equation?
OpenStudy (katrinakaif):
Uh-oh
OpenStudy (anonymous):
Wanted star to set up the equation :D
OpenStudy (anonymous):
well i know that proportion is showing 2 equal ratios
OpenStudy (katrinakaif):
Use what I taught you.
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hero (hero):
Katrina taught somebody something?
OpenStudy (anonymous):
75 of n=66 75x66=n
OpenStudy (anonymous):
I find Katrina very clear
OpenStudy (katrinakaif):
Come on star, break this down as I taught you too.
hero (hero):
is/of = %/100
66/x = 75/100
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OpenStudy (anonymous):
hmm..
66/75 = 0.88
0.88 * 100 = 88
OpenStudy (katrinakaif):
75% converts to?
OpenStudy (katrinakaif):
.75
OpenStudy (anonymous):
Guys wait you are all confusing star
hero (hero):
66/x = 3/4
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OpenStudy (katrinakaif):
I guess Hero wants to explain. He shall assist you.
OpenStudy (anonymous):
Did I explain it properly?
hero (hero):
Don't look at anyone else's steps, just look at mine :P
OpenStudy (anonymous):
, 75 and 66 is .66 so
OpenStudy (katrinakaif):
66 remains 66 because it is not 66%.
If it was a percentage, then you will use the decimal.
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OpenStudy (anonymous):
ok
hero (hero):
It says to use a proportion. I provided the proper set up for this.
OpenStudy (katrinakaif):
Well then, provide the steps and help her.
hero (hero):
I did
OpenStudy (anonymous):
wait can u write all the steps down so i can write it down and study it
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OpenStudy (anonymous):
so i can memorize
OpenStudy (katrinakaif):
Don't memorize Mathematics. Comprehend it.
OpenStudy (anonymous):
well teach me hero
OpenStudy (anonymous):
Katrina is correct =)
OpenStudy (katrinakaif):
as always =P
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hero (hero):
The question asks:
75% of what number is 66?
is/of = %/100
66/x = 75/100
66/x = 3/4
3*x = 66*4
3x = 264
x = 264/3
x = 88
Therefore, 75% of 88 is 66
Pippa, this truly is the proper solution given what is asked of the original question.
Proportion is an equation with the form:
a/b = c/d
OpenStudy (anonymous):
24 is 96% of what number?
OpenStudy (anonymous):
go
hero (hero):
I'm going to bed. I'm not doing this again, lol
OpenStudy (anonymous):
pippa can u explan it step by step?
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OpenStudy (katrinakaif):
Star, try first.
OpenStudy (anonymous):
ok well 24n=96% and 96/n=24 so 96/24=4and244=96% so the answer is 6% of 96%
OpenStudy (anonymous):
is that correct?
OpenStudy (anonymous):
correction 24 is 6% of 96%
OpenStudy (katrinakaif):
Star...
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OpenStudy (anonymous):
wat is it wrong agian?
OpenStudy (katrinakaif):
24 is 96% of what number?
What is your expression here?
OpenStudy (anonymous):
24 is n of 96
OpenStudy (anonymous):
i thought i was right!!??
OpenStudy (katrinakaif):
96% converts to what?
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OpenStudy (anonymous):
.96
OpenStudy (katrinakaif):
Good, so now your eequation is:
24 is n of .96
OpenStudy (katrinakaif):
"Is" converts to?
OpenStudy (anonymous):
um =
OpenStudy (anonymous):
%
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OpenStudy (katrinakaif):
Great.
Now our equation is:
24 = n of .96
OpenStudy (katrinakaif):
What does "of" convert to?
OpenStudy (anonymous):
%
OpenStudy (katrinakaif):
What does OF convert to Star?
OpenStudy (anonymous):
%
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OpenStudy (katrinakaif):
"OF" does NOT convert to a percentage sign!!!
OpenStudy (katrinakaif):
Scroll up, view and refer to your past questions and my explanations on them!!!
OpenStudy (anonymous):
x
OpenStudy (katrinakaif):
Multiplication.
Now our eqaution is??
OpenStudy (anonymous):
no i put x in cuz i meant mutliplycation i did not know how to put it
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OpenStudy (katrinakaif):
Now, we found all our components.
Our equation is?
OpenStudy (anonymous):
our equation is 24=n *.96
OpenStudy (anonymous):
i think thats times
OpenStudy (katrinakaif):
Yay! Good!
OpenStudy (katrinakaif):
Now lets solve.
24 = n x .96
The "n x .96" can be easily written as ".96n"
Do you understand why?
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OpenStudy (anonymous):
yes cuz when there togeter like that it is *(multiplycation)
OpenStudy (katrinakaif):
Good!!
So our final equation is:
24 = .96n
How can we get "n" alone?
OpenStudy (anonymous):
24 is 48% of 96%
OpenStudy (katrinakaif):
Answer my question..the answer you got is inaccurate.
OpenStudy (anonymous):
wat do u mean?
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OpenStudy (katrinakaif):
24 = .96n
Our goal is to get "n" alone.
To do so, we have to divide .96 from both sides
When we do so, we get:
24/.96 = .96n/.96
.96n / .96 gives us simply "n"
24/.96 give us?
OpenStudy (anonymous):
n=50%
OpenStudy (katrinakaif):
24 divided by .96 is???
OpenStudy (anonymous):
25
OpenStudy (katrinakaif):
Do you understand how to do this whole thing?
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