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aleksklad [387]
2 years ago
13

Simplify ((1/x)-(1/y))/((1/x)+(1/y))

Mathematics
1 answer:
In-s [12.5K]2 years ago
7 0
<span>Simplify ((1/x)-(1/y))/((1/x)+(1/y))</span>


y-x
______

y+x
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A number is divided by 3. Then 14 is added to the quotient. The result is 33. What is the orginal number?
seropon [69]

let "a number" = x

a number is divided by 3 => x/3

14 is added to the quotient => (x/3) + 14

The result is 33 => " = 33"

Solve for x

(x/3) + 14 = 33

Isolate the x. Note the equal sign. What you do to one side you do the other.

Subtract 14 from both sides

(x/3) + 14 (-14) = 33 (-14)

x/3 = 19

Isolate the x. Multiply 3 to both sides

x/3(3) = 19(3)

x = 19(3)

x = 57

57 is your original number

hope this helps

4 0
2 years ago
If it took eight men ten hours to build a wall, how many hours would it take four men to build it?
arlik [135]
Two hours bc if it takes 8 to do it in one hour and u split the number of men u have in half you double the work hours 8men=1hour of work 4men=2hours of work
Hope this helps have a nice day
4 0
2 years ago
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A farmer wants to fence in a rectangular plot of land adjacent to the north wall of his barn. no fencing is needed along the bar
jeyben [28]

Hi,

Let assume a the west side,

b the length of the north wall (i suppose the answer is smaller then the barn.

Cost of the fence= a*6+a*12+b*12=3000 $.

So 3a+2b=500==>b=(500-3a)/2

Area =a*b=a(500-3a)/2= 250a-3/2a²

Derivate the area ==> 250-3a=0

==> a=250/3 and b=(500-3*250/3)/2=125

Width=125 (feet)

Length=250/3=83.333 (feet)

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2 years ago
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Solnce55 [7]

Answer: where's the question

Step-by-step explanation:

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3 years ago
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Which expression is equivalent to 5 (2 + 7)?
SOVA2 [1]
The answer wold be 5(2)+5(7)
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2 years ago
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