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Mathematics
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OpenStudy (anonymous):
36% of what number is 18?
12 years ago
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OpenStudy (kc_kennylau):
Let that number be \(x\).
12 years ago
OpenStudy (kc_kennylau):
\(x\times36\%=18\)
12 years ago
OpenStudy (kc_kennylau):
can you continue? :)
12 years ago
OpenStudy (anonymous):
6.48
12 years ago
OpenStudy (anonymous):
write the equation and solve
12 years ago
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OpenStudy (anonymous):
change 36% into a decimal, 0.36
then set up the equation:
.36*x=18,
then solve for x by dividing both sides by .36
12 years ago
OpenStudy (anonymous):
um... it has to be greater than 18 @musa19965
12 years ago
OpenStudy (jdoe0001):
\( \begin{array}{llll}
quantity&percentage\\
x&100\\
18&36
\end{array}\implies \cfrac{x}{18}=\cfrac{100}{36}\)
12 years ago
OpenStudy (jdoe0001):
lol
12 years ago
OpenStudy (anonymous):
ooops
Solve for x:
0.36 x = 18
Divide both sides by a constant to simplify the equation.
Divide both sides of 0.36 x = 18 by 0.36:
(0.36 x)/0.36 = 18/0.36
Any nonzero number divided by itself is one.
0.36/0.36 = 1:
x = 18/0.36
Express 18/0.36 in decimal form.
18/0.36 = 50.:
Answer: |
| x = 50.
12 years ago
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OpenStudy (anonymous):
I got it :) thanks everyone
12 years ago
OpenStudy (anonymous):
not supposed to do it for them @musa19965
12 years ago
OpenStudy (anonymous):
ooops sorry
12 years ago
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