All categories

3 years ago

A carpet store puts 40 square yards of outdoor carpet

Mathematics

1 answer:

4vir4ik [10]3 years ago

7 0

Answer:

29 2/3

Step-by-step explanation:

40 - 10 1/3

Convert the mixed numbers to improper fraction

= 40 - 31/3

Simplifying the above expression,

= 120 - 31 /3

= 89/3

= 29 2/3 carpet yards

Thus from total of 40 yards, 29 2/3 yards of carpet were sold.

If half of 29 2/3 were green carpets sold, thus, 29 2/3 divided by 2 equals 14.83 feet of green carpet were sold.

You might be interested in

Chris opened up a new credit card and credit line with U.S bank. He is paying a 15% APR on all new purchases

Nana76 [90]

Answer:

Which one does not belong to the group

8 0

1 year ago

On a coordinate plane, 2 triangles are shown. The first triangle has points M (negative 5, 4), N (negative 3, 2), and L (negativ

Alinara [238K]

Answer:

Step-by-step explanation:

4 0

3 years ago

Given the points A(-6,16) B(2,-4)

pantera1 [17]

Neither… bc the lines are going the same direction or crossing each other

4 0

2 years ago

An environmental engineer is tasked with determining whether a power plant cooling system is heating the water it uses more than

Tpy6a [65]

Answer:

The correct option is b

The correct option is h

Step-by-step explanation:

From the question we are told that

The sample size is n = 15

The difference in population proportion is $d = 6$

Generally the sample mean of the input temperature is

$\= x_1 = \frac{\sum x_i }{n}$

=> $\= x_1 = \frac{57.6 + 68.9 + \cdots +60.4 }{15}$

=> $\= x_1 = 62.57$

Generally the sample mean of the output temperature is

$\= x_2 = \frac{\sum x_i }{n}$

=> $\= x_2 = \frac{65.1 + 74.4 + \cdots +67.3 }{15}$

=> $\= x_2 = 55.97$

Generally the difference of the sample mean of the input temperature and that of the output temperature is

$\= d = \= x_1 - \= x_2$

=> $\= d = 62.57 -55.97$

=> $\= d = 6.6$

Generally the standard deviation is mathematically represented as

$s_d = \sqrt{\frac{\sum(d_1 - \= d )^2}{n} }$

=> $s_d = \sqrt{\frac{([57.6- 65.1]- 6.6)^2+ ([68.9 - 74.4]- 6.6)^2 + \cdots + ([60.4 - 67.3]- 6.6)^2 }{15} }$

=> $s_d = 1.732 [/texGenerally the test statistics is mathematically represented as [tex]t = \frac{ d - \= d }{ \frac{s_d}{\sqrt{n} } }$

=> $t = \frac{ 6-6.6 }{ \frac{1.732}{\sqrt{15} } }$

=> $t = 1.3417$

Generally the degree of freedom is mathematically represented as

$df = n - 1$

=> $df = 15 - 1$

=> $df = 14$

Generally the probability of t obtained from the t - distribution table at a degree of freedom of $df = 14$ is

$P(t >1.3417 ) = 0.10052569$

Generally the p-value is mathematically represented as

$p-value = 2 * P(t > 1.3417)$

=> $p-value = 2 * 0.10052569$

=> $p-value = 0.201$

From the values obtained we see that $p-value > \alpha$ hence

The decision rule is

Fail to reject the null hypothesis

The conclusion is

The cooling system changes the temperature of the water by 6 degrees.

8 0

3 years ago

What is the answer to this problem and how did you get it

daser333 [38]

6+ the power of 2 is 12

12+n=12/4=3 Than Keep change change

Now this is your answer 3n+2

6 0

2 years ago