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weqwewe [10]
3 years ago
14

)

Mathematics
2 answers:
wlad13 [49]3 years ago
6 0

Answer:

$19.80

Step-by-step explanation:

<u>Each pack of organic milk costs $3.96 dollars.</u>

Mandy buys <u>five</u> of them.

<u>Multiply</u> 3.96 by 5.

3.96*5=19.8

<em>Mandy spent $19.80 </em><em>in all </em><em>on his purchase.</em>

Brums [2.3K]3 years ago
4 0

answer:

$19.80

Step-by-step explanation:

$3.96 x 5 = 19.80

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A rectangular prism with a width of 7.4 cm, a length of 8 cm, and a height of 3.2 cm​
Mashcka [7]

Answer: 82.88

Step-by-step explanation:

BxHxW

7.4 x 3.2 = xxx

7.4 x 8 = xxx

So, what you'll do is combine both of the sums, and you will get 82.88

3 0
2 years ago
Can someone please help me on the multiple choice 1-3 please ? Im stuck please
Makovka662 [10]

Answer:

1. (4)x + y =50

  2x + 4y =172

2. (1)x + y =8

   150x + 50y =800

3. (1)x + y =20

   25 + 10y =290

Step-by-step explanation:

Just trust me and its too much work explaining and im lazy so just ask your teacher or a friend if you can.

3 0
3 years ago
The diameter of a circular plate is 12 inches. What is the area of the plate? Round your answer to the nearest tenth of a square
Kay [80]

Answer:

Plate Area = PI * radius^2

Plate Area = 3.14159 * 6 * 6

Plate Area = 113.09724  square inches

Plate Area = 113.1 square inches (rounded)

Step-by-step explanation:

7 0
2 years ago
A Survey of 85 company employees shows that the mean length of the Christmas vacation was 4.5 days, with a standard deviation of
GenaCL600 [577]

Answer:

The 95% confidence interval for the population's mean length of vacation, in days, is (4.24, 4.76).

The 92% confidence interval for the population's mean length of vacation, in days, is (4.27, 4.73).

Step-by-step explanation:

We have the standard deviations for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 85 - 1 = 84

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 84 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 1.989.

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.989\frac{1.2}{\sqrt{85}} = 0.26

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 4.5 - 0.26 = 4.24 days

The upper end of the interval is the sample mean added to M. So it is 4.5 + 0.26 = 4.76 days

The 95% confidence interval for the population's mean length of vacation, in days, is (4.24, 4.76).

92% confidence interval:

Following the sample logic, the critical value is 1.772. So

M = T\frac{s}{\sqrt{n}} = 1.772\frac{1.2}{\sqrt{85}} = 0.23

The lower end of the interval is the sample mean subtracted by M. So it is 4.5 - 0.23 = 4.27 days

The upper end of the interval is the sample mean added to M. So it is 4.5 + 0.23 = 4.73 days

The 92% confidence interval for the population's mean length of vacation, in days, is (4.27, 4.73).

8 0
3 years ago
Ayuda 7×9÷2=<br><br><br><br>note : btw how to get rid of this ad ?​
JulijaS [17]

Step-by-step explanation:

7×9÷2

By using the rule of BODMAS , we get

7×9÷2

7×4.5

31.5

5 0
2 years ago
Read 2 more answers
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