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tiny-mole [99]
2 years ago
11

PLEASE HELP!!

Mathematics
2 answers:
qaws [65]2 years ago
7 0

Answer:

586321

Step-by-step explanation:

ludmilkaskok [199]2 years ago
3 0

Answer:

x = 25.

Step-by-step explanation:

Original cost per person:: 2000/x

Changed cost per person:: 2000/(x-5)

---------------------------

Equation:: changed - original = 20

2000/(x-5) - 2000/x = 20

2000x - 2000x + 2000*5 = 20x(x-5)

10000 = 20x^2-100

 

----

500 = x^2 - 5x

------------------

x^2 - 5x - 500 = 0

(x+20)*(x-25) = 0

-----

Only positive root makes sense ====> x = 25.

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Answer:

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Step-by-step explanation:

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b. -Let X be the mean price of a randomly selected house.

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8 0
3 years ago
The sum of an infinite geometric series is three times the first term. Find the common ratio of this series.
adelina 88 [10]

Answer:

\frac{2}{3}

Step-by-step explanation:

The sum of an  infinite geometric series is expressed according to the formula;

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If the sum of an infinite geometric series is three times the first term, this is expressed as S_\infty = 3a

Substitute S_\infty = 3a into the formula above to get the common ratio r;

3a = \dfrac{a}{1-r} \\\\

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open the parenthesis

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3 0
3 years ago
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Answer:

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Explanation:

     Q

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3 0
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ArbitrLikvidat [17]
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2 years ago
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Leni [432]

Answer:

A

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