Mathematics
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OpenStudy (anonymous):
What is the percent of increase from 50 to 90?
A.
40%
B.
44%
C.
56%
D.
80%
11 years ago
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OpenStudy (holly00d1248):
what you think
11 years ago
OpenStudy (inowalst):
What do you think?
11 years ago
OpenStudy (anonymous):
a
11 years ago
OpenStudy (inowalst):
Right.
11 years ago
OpenStudy (holly00d1248):
yep it A
11 years ago
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OpenStudy (anonymous):
yaya but to whom i medal
11 years ago
OpenStudy (holly00d1248):
@inowalst he answered first
11 years ago
OpenStudy (nothingwasthesame):
you could tag one and the other tags the other one
11 years ago
OpenStudy (anonymous):
B
11 years ago
OpenStudy (anonymous):
ok thanks
11 years ago
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OpenStudy (inowalst):
B is wrong. Subtract 50 from 90. You get 40. Thank you.
11 years ago
OpenStudy (anonymous):
np
11 years ago
OpenStudy (anonymous):
i am gonna post a another one
11 years ago
OpenStudy (anonymous):
100 / 90 = 1.1111
(1.111) * 50 = 55.6
100 - 55.6 = ~44%
11 years ago
OpenStudy (anonymous):
i agree i think b 44%
11 years ago
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OpenStudy (anonymous):
Its not as simple as 90 - 50
11 years ago
OpenStudy (anonymous):
ok
11 years ago
OpenStudy (holly00d1248):
where you get 55.6 though
11 years ago
OpenStudy (anonymous):
100 / 90 = 1.1111
(1.111) * 50 = 55.6
100 - 55.6 = ~44%
11 years ago
OpenStudy (inowalst):
Why would you divide 100 by 90?
11 years ago
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OpenStudy (anonymous):
Well, in this case 90 is equal to 100%
11 years ago
OpenStudy (holly00d1248):
Still dont get it
11 years ago
OpenStudy (holly00d1248):
@MathNinja_C go help her then she opened another question
11 years ago
OpenStudy (anonymous):
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11 years ago
OpenStudy (anonymous):
sorry my dog
11 years ago
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OpenStudy (anonymous):
If there are 25 questions on a test, how do you figure out how much each question is worth? 100 / 25 = 4 points
100 / 90 = 1.111 basicaly 1.111 points for each unit
11 years ago
OpenStudy (holly00d1248):
O makes sense now
11 years ago
OpenStudy (anonymous):
50 * 1.111 = 55.6%
11 years ago
OpenStudy (anonymous):
Thus, going from 55.6 to 90 (which is 100% in this case) means 100 -55.6 = ~44%
11 years ago
OpenStudy (anonymous):
Please vote me as best response
11 years ago
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OpenStudy (anonymous):
ok
11 years ago