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Anuta_ua [19.1K]
3 years ago
8

one positive number is 12 times another positive number. The difference between the two numbers is 143

Mathematics
2 answers:
stich3 [128]3 years ago
8 0
Let x is one positive number
<span>One positive number is 12 times another positive number 12x
</span>12x - x = 143
11x = 143
x = 143/11
x = 13

12x = 12(13) = 156

answer: 2 numbers are 13 and 156

double check:

<span>difference between the two numbers is 143
</span>156 - 13 = 143 


Natali [406]3 years ago
5 0
Let x be the unknown number and let's set up an equation.
12x - x = 143
Now solve for x:
11x = 143
x = 13
The positive number is 13.
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snow_tiger [21]

Answer:

  y = √55

Step-by-step explanation:

All the triangles are similar, so the ratio of short side to hypotenuse is the same for all:

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_____

<em>Comment on the geometry</em>

There are three "geometric mean" relationships that apply to this geometry.

  1. the altitude BD is the geometric mean of BC and BA (√30)
  2. the long side of the large triangle is the geometric mean of the longer segment of the hypotenuse and the whole hypotenuse (x = √66)
  3. the short side of the large triangle is the geometric mean of the shorter segment of the hypotenuse and the whole hypotenuse (y = √55)

If you were aware of the last of these relationships, you could write down the answer without any "work."

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The geometric mean is the n-th root of the product of n numbers. When there are 2 numbers, it is the square root of their product.

4 0
3 years ago
What is the product of three square root of eight times four square root of three? Simplify your answer.
igor_vitrenko [27]
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3\sqrt{8}*4\sqrt{6}
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Now try to simplify the square-roots to find any squares inside that can be reduced and taken out of the square-root:

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Multiply the square roots together:
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Now take out the square-root of 4 and simplify
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