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uysha [10]
2 years ago
15

A number added to one third of itself equals 12 . what is the number​

Mathematics
2 answers:
Drupady [299]2 years ago
8 0

Answer:

9

Step-by-step explanation:

x+1/3x=12

(3x+1x)/3=12

4x/3=12

4x=12×3

4x=36

x=36/4

x=9

ValentinkaMS [17]2 years ago
6 0

Answer:

1/3+x=12(cross multiply)

x+1=12*3

x+1=36(collect like terms)

x=36-1

x=35

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3 years ago
I don’t understand how to do this
schepotkina [342]

Answer:

The solution is x =0.

Step-by-step explanation:

The equation

\bold{(1).}\: sin(\dfrac{3\pi }{2} +x)+sin(\dfrac{3\pi }{2} +x) =-2

can be rewritten as

2* sin(\dfrac{3\pi }{2} +2) =-2

and can be further simplified to

sin(\dfrac{3\pi }{2}+x ) =-1.

Now, taking the inverse sine of both sides we get:

sin^{-1}(sin(\dfrac{3\pi }{2} +x) =sin^{-1}(-1)

\bold{(2).}\:  \dfrac{3\pi }{2} +2 =sin^{-1}(-1)

The value of the right side on the interval [0,2\pi) is

sin^{-1}(-1) = \dfrac{3\pi}{2} \: \:( \text{or }270^o) ,

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\dfrac{3\pi }{2}+x  =\dfrac{3\pi}{2}

solving for x gives

\boxed{x = 0}

which is our solution.

4 0
3 years ago
The property taxes on a business were $1035. What was the tax rate of the business office was valued at $115,000?
olya-2409 [2.1K]

Answer:

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Step-by-step explanation:

Given that:

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Rate = 1035/115,000 * 100

By simplifying we get:

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This means that the tax rate is 0.9% of the original amount.

i hope it will help you!

7 0
3 years ago
Will give brainliest for correct answer.
lukranit [14]
The numerator and denominator  must be polynomials  so 

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5 0
2 years ago
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During a sale at the mal, all items were marked down 40% off of the original price. Lily purchased a purse that was originall $2
NNADVOKAT [17]

Answer:

$132

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Thus, you will multiply the original (220) by .6 (this means 60 percent)

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3 0
3 years ago
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