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VikaD [51]
2 years ago
12

Alex wants to arrange chairs in such a way that the number of chairs in a row is equal to the number of columns. He has ordered

5100 tables.
a)How many more tables needed to arrange in such a way that he planned? Justify your answer
2)How many chairs can he remove to arrange in a way that he wants? Justify your answer.
Mathematics
1 answer:
PIT_PIT [208]2 years ago
8 0

Answer:

84

59

Step-by-step explanation:

In other to have the same number of chayes in both rows and columns ;

If the Number of chairs per row = x ; then number of chairs per column = x

Then the total number of chairs needed = x * x = x²

Hence, if there are 5100 chairs ;

Number of chairs needed more ;

Take the square root of 5100 ;the round to the next whole number :

B.) For number of chairs to be removed ;

Take the square root of 5100 and round down to the whole number.

Hence,

A.) = √5100 = 71.414 = 72

72² - 5100 = 84

B.) 5100 = 71.414 = 71

5100 - 71² =

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<h3>What is the price of the lunch?</h3>

Both the tax and the tip paid would increase the cost of the meal. Thus, their dollar value has to be subtracted from the total amount he pays.

Value of the lunch after the tip has been removed = (1 - 0.2) x 17.92 = $14.34

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To learn more about taxes, please check: brainly.com/question/25311567

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5 0
2 years ago
Write the standard form of the equation of the circle with radius 4 and center (−7,−6).
olasank [31]

The equation of a circle is written as (x-h)^2 +(y-k)^2 = r^2

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4 0
2 years ago
Help me In sick and don’t feel like doing their rn tbh
castortr0y [4]

Answer:

1.. \:  \: 64 - 40 = 24 \\ so.\% \:  \\  \frac{24}{40}  \times 100 = 60\% \\

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1-e

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5 0
3 years ago
I don't understand how to solve these questions. One of the choices are picked, that is the wrong choice.
marishachu [46]
It would be (A) , the point 9 (38.9) only needs another point to be a whole tenth .
4 0
3 years ago
Read 2 more answers
The drama club was selecting which carnival booths to sponsor at the fall carnival from a list of nine. How many different ways
denis-greek [22]

Answer:

Option B

Step-by-step explanation:

Here we have to apply " combination and permutation. " It is given that the drama club had to choose three booths from a selection of 9, considering the possible ways to choose so. This is a perfect example of combination. In nCr, n corresponds to 9, respectively r corresponds to 3.

\mathrm{n\:choose\:r},\\nCr=\frac{n!}{r!\left(n-r\right)!},\\\\\frac{9!}{3!\left(9-3\right)!} =\\\frac{9!}{3!\cdot \:6!} =\\\\\frac{9\cdot \:8\cdot \:7}{3!} =\\\frac{504}{6} =\\\\84\\\\Solution = Option B

Hope that helps!

8 0
3 years ago
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