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Leya [2.2K]
3 years ago
14

A local park is building a sand volleyball court 40 feet long and 15 feet wide. They are paying $3000 to have the sand put into

the court. How much does the court cost per square foot of sand?
Mathematics
2 answers:
andrew-mc [135]3 years ago
4 0

Answer:

The court cost $5 per square foot of sand

Step-by-step explanation:

step 1

Find the area of the volleyball court

The area of the rectangular court is equal to

A=LW

we have

L=40\ ft

W=15\ ft

substitute

A=(40)(15)=600\ ft^{2}

step 2

Divide the total cost to have the sand put into the court by the area of the court

so

\frac{3,000}{600}\frac{\$}{ft^{2}}=5\frac{\$}{ft^{2}}

therefore

The court cost $5 per square foot of sand

koban [17]3 years ago
3 0

Answer:

$5 per square feet.

Step-by-step explanation:

A local park is building a stand volleyball court that is 40 feet long and 15 feet wide.

Area of the volleyball court = length × width

                                              = 40 × 15

                                              = 600 feet²

They are paying $3,000 to have the stand put into the court.

The cost per square foot of stand =  \frac{3000}{600}

                                                        = 5 dollar per square

The cost is $5 per square feet of stand.

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Aron wrote the function f(x)=25x-15 find the amount of money he would make after washing x cars. Select all of the values below
hram777 [196]

Answer:

A.. 2

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Step-by-step explanation:

If x represents the number of cars that wash Aron, then the domain of x must contain only integers and positive numbers (natural numbers)

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In the same way Aron can not wash 1.29 cars. Or washed 1 car or washed 2, it is not consistent in this case to say that washed a car and a half, for example.

Therefore the correct answer is the options.

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4 0
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alexandr1967 [171]
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7 0
3 years ago
Is this right and can someone show me the explanation plz?and how to do the problem I have to show my work
Zina [86]

Answer:

yes it is.

x = 4 and y = -3

Step-by-step explanation:

Solve simultaneously using elimination method:

equation 1 - equation 2

3x + y = 9 equation 1

-2x + y = 5 equation 2

_________

x = 4

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7 0
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The median age of residents of the United States is 31 years. If a survey of 100 randomly selected U.S. residents is to be taken
makvit [3.9K]

Answer:

P (x≥ 57) = 6.7789 e^-8

Step-by-step explanation:

Here n= 100

p = 31/100 = 0.31

We formulate the null hypothesis that H0: p= 0.31 against the claim Ha: p≠0.31

The significance level is chosen to be ∝= 0.05

The test statistic x to be used is X, the number  U.S. residents is to be taken which is at least 57

The binomial calculator gives the

P (x≥ 57) = 6.7789 e^-8

IF ∝= 0.05 then ∝/2 = 0.025

We observe that P (x≥ 57) is less than 0.025

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This is true because for normal distribution the median = mean which is usually the 50 % of the data.

6 0
3 years ago
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