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babymother [125]
3 years ago
15

When a number is reduced by 40%, the result is 36. What is the original number?

Mathematics
2 answers:
ryzh [129]3 years ago
5 0
So if .6*x is 36. then 36/.6=X=60
Vsevolod [243]3 years ago
5 0
You can write this out as:

x - 0.4x = 36

The number minus 40% of the number is 36.  To simplify, combine like terms:

0.6x = 36

Finally, divide each side by 0.6:

x = 60

The original number is 60.
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It x, y, and z are positive intergers and 3x = 4y = 7z, then the least possible value of x + y + z is???
Dmitry [639]

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2 years ago
3/7 to 6/7. what is the percent of change
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4 0
3 years ago
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8 0
2 years ago
This is the question ​
zysi [14]

Answer:(1,1)

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3 0
3 years ago
A and b are positive integers and a-b=2. Evaluate the following:<br> 9^1/2b/3^a
OlgaM077 [116]

Answer:

\frac{1}{ 9 }

Step-by-step explanation:

\huge \frac{ {9}^{ \frac{1}{2}b } }{ {3}^{a} }  \\  \\  =  \huge \frac{ {( {3}^{2} )}^{ \frac{1}{2}b } }{ {3}^{a} } \\  \\  =  \huge \frac{ { {3}}^{2 \times  \frac{1}{2}b } }{ {3}^{a} }  \\  \\  \huge =  \frac{ {3}^{b} }{ {3}^{a} }  \\  \\  \huge =  \frac{1}{ {3}^{a - b} }  \\  \\   \huge=  \frac{1}{ {3}^{2} } \\  ( \because \: a - b = 2)\\  \\  \huge =  \frac{1}{ 9 }

5 0
3 years ago
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