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3 years ago

Find the sum of 5 9/13 + 5 9/13

Mathematics

2 answers:

NNADVOKAT [17]3 years ago

7 0

Answer: 148/13 or (5 9/13) + (5 9/13) = 11.3846153846

Simplify the following:

5 + 9/13 + 5 + 9/13

Put 5 + 9/13 + 5 + 9/13 over the common denominator 13. 5 + 9/13 + 5 + 9/13 = (13×5)/13 + 9/13 + (13×5)/13 + 9/13:

(13×5)/13 + 9/13 + (13×5)/13 + 9/13

13×5 = 65:

65/13 + 9/13 + (13×5)/13 + 9/13

13×5 = 65:

65/13 + 9/13 + 65/13 + 9/13

65/13 + 9/13 + 65/13 + 9/13 = (65 + 9 + 65 + 9)/13:

(65 + 9 + 65 + 9)/13

| 2 |

| 6 | 5

| | 9

+ | | 9

1 | 4 | 8:

Answer: 148/13

matrenka [14]3 years ago

5 0

You have to add those two together, so your problem would look like this:

5 (your whole mumber)

9/13 (your fraction)

5 9/13 + 5 9/13 = 10 - the whole number

9/13 + 9/13 = 18/13 since the denomentator always stays the same! (the bottom half) so, we have to make 18/13 a proper fraction since its mixed right now. To do that, we need to subtract the numerator (the top) and the denomentator to see how many times 13 can go into 18. So what you do is 18-13 and you get 5 left. It only went in once, so you would add to your whole number you had previously which was 10. You get 11, and since you had left your fraction would look like 5/13.

Therefore, your answer would be 11 5/13.

Hope this helped!

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The lengths of a particular snake are approximately normally distributed with a given mean mc025-1.jpg = 15 in. and standard dev

Vedmedyk [2.9K]

Answer:

2.5% of the snakes are longer than 16.6 in

Step-by-step explanation:

The Z score is,

$Z=\dfrac{X-\mu}{\sigma}$

here,

X = raw score = 16.6

μ = mean = 15

σ = standard deviation = 0.8

So,

$Z=\dfrac{16.6-15}{0.8}=2$

Z-score is the measurement of how many standard deviation away the data is from the mean. Hence, the value 16.6 is 2 standard deviations right to the mean.

Approximately 95% of the data falls within two standard deviations of the mean. (between the mean-2 times the standard deviation, and the mean+2 times the standard deviation)

So the 5% of data are left in the remaining space. As we have to find the amount of snakes which are longer than 16.6 in i.e we have to find the area to the right of 16.6.

The remaining 5% of amount is divided in two equal parts.

Therefore, $\dfrac{5}{2}=2.5\%$ of the snakes are longer than 16.6 in

6 0

3 years ago

Read 2 more answers

Hardy is packing his book collection into a box. Each book measures 4inches by 6 inches by 1 inch. The box he uses measures 24 i

netineya [11]

Answer:

1. 192 books.

2. 96 books.

3. 24 books.

Step-by-step explanation:

1. Let's find the volume of each book and the volume of the box, this way:

Volume of a book = 4 * 6 * 1 = 24 inches ³

Volume of the box = 24 * 24 * 8 = 4,608 inches ³

2. If Hardy fills the box completely, what is the greatest number of books that fit into the box?

Greatest number of books = Volume of the box/Volume of a book

Greatest number of books = 4,608/24

Greatest number of books = 192

3. If Hardy fills the box completely with the least number of layers, there will be (blank) books on the bottom layer.

The height of the box is 8 inches, so it can only can hold 2 or 8 layers of books, since the books are 4 * 6 * 1 inches.

Greatest number of layers = Height of the box/Width of a book

Greatest number of layers = 8/1 = 8

Minimum number of layers = Height of the box/Height of a book

Minimum number of layers = 8/4 = 2

Upon saying that, we have:

Number of books per layer = Greatest number of books/Minimum number of layers

Number of books per layer = 192/2 = 96

4. To fill the box completely, Hardy places 8 layers of books in the box. There are (blank) books in each layer.

Number of books per layer = Greatest number of books/Number of layers

Number of books per layer = 192/8

Number of books per layer = 24

Note: Same answer to question 14559894, answered by me today.

5 0

4 years ago

Bella is x years old. Jake is 9 years older than Bella. Five times Jake’s age is equal to 300. (a) Write an equation that could

podryga [215]

300 divided by 5= jake
Jakes answer minus 9 is Bella’s age

3 0

3 years ago

I need help!!

Natasha2012 [34]

Answer:

The exact solution is

$x = \frac{Ln(60)}{7*Ln(5)}$

And the approximation to three decimal places is:

x = 0.363

Step-by-step explanation:

Here we have the equation:

$5^{7*x} = 60\\$

Now we can remember a property of the natural logarithm function:

Ln(a^n) = n*Ln(a)

Now we can apply the Ln( ) function to both sides of that equation to get:

$Ln(5^{7*x}) = Ln(60)$

Then we get:

$7*x*Ln(5) = Ln(60)$

Solving that for x we get:

$x = \frac{Ln(60)}{7*Ln(5)} = 0.363$

So the exact solution is:

$x = \frac{Ln(60)}{7*Ln(5)}$

And the approximation to three decimal places is:

x = 0.363

7 0

3 years ago

How much greater is the value of the 6 in 4,786.53 than in 3,821.69?

zepelin [54]

Answer:

The 6 in 4,786.53, is 6 times greater than the 6 in 3,821.69.

Step-by-step explanation:

The value of 6 in 4,786.53, is in the ones. 6

The value of 6 in 3,821.69, is in the tenths. 0.6

6/0.6 = 10

The 6 in 4,786.53, is 6 times greater than the 6 in 3,821.69.

Hope that helps!

4 0

2 years ago