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3 years ago

What is 4/9 + 1 1/5 =

Mathematics

2 answers:

faust18 [17]3 years ago

5 0

Answer:

2 29/45 or 119/45

Step-by-step explanation:

First, find a common denominator. I chose 45 (9x5) Multiply the numerator by what you multiplied the denominator by (4x5=20|9x5=45\11x9=99| 5x9=45)

Add the numerator next ( 20+99=119). Converted to a mixed number is 2 29/45

yarga [219]3 years ago

4 0

Answer:

74/45

Step-by-step explanation:

First convert 1 1/5 to an improper fraction (6/5)

Then you are going to need to look for a least common denominator between 6/5 and 4/9

The least common multiple between 5 and 9 is 45

Now you need to get the denominator of each fraction to 45 so that you can add them

To get 6/5 to have a denominator of 45, you will need to multiply the denominator (5) by 9. REMEMBER- whatever you do to the bottom you must also do to the top

If you multiply the 5 by 9, you must also multiply the 6 at the top by 9

So now you have 54/45 for the second fraction

To get the first fraction with a denominator of 45 you must multiply everything by 5 (20/45)

Now you can simply add straight across (54+20=74)

Remember to keep the denominator the same and you should end up with 74/45 (This cannot be simplified)

You might be interested in

Find the number of all 20 digit integers in which no two consecutive digits are the same

Arturiano [62]

For the first digit of the required 20-digit number, we can have 9 choices for the number, those are the digits 1 to 9. In the second digit of the number, we will only have 8 choices. That is because, we don't want to write a number in the second digit that is similar to the first digit and the third digit.

Similarly, in the third digit's place, we will only have 8 choices because we do not want the digit to be similar to the second digit and the fourth digit. This will go on up until the 19th digit. In the 20th digit, we will also have 9 choices (from 0-9) but we do not want the digit to be similar to the 19th digit.

From the explanation given above, we have the number of ways,

n = 9 x 8^(19 - 1) x 9 = 1.459 x 10^18

<em>ANSWER: 1.459 x 10^18</em>

5 0

3 years ago

There are 112 seats in the school auditorium. There are 7 seats in each row. There are 70 people seated, filming up full rows of

AleksandrR [38]

6 rows are empty.

112/7 = 16 rows

70/7 = 10 rows used.

4 0

3 years ago

If u want u can answer question 14 and 15 but if u don’t just answer 14

natali 33 [55]

Answer:

For #14, (around) 108 times.

#15 = 53

Step-by-step explanation:

14)

2.69*10^5 = 269000

2.5*10^3 = 2500

269000/2500 = 107.6

Rounding up, we get 108

15)

√(53 - 8)2 + (31 - 3)2

= √(45)2 + (28)2

= √2809

= 53

Hope this helped! I would love a Brainliest if this helped you!

5 0

2 years ago

Fill in the blank by performing the indicated elementary row operation(s).

Scilla [17]

In this question, we are given a matrix, and we have to perform the given operation.

The matrix is:

$\left[\begin{array}{ccc}6&-1&|5\\1&-5&|0\end{array}\right]$

The following operation is given:

$R_1 \rightarrow -6R_2 + R_1$

In which $R_1$ is the element at the first line and $R_2$ is the element at the second line.

Updating the first line:

$R_{1,1} = -6*1 + 6 = 0$

$R_{1,2} = -6*-5 - 1 = 30 - 1 = 29$

$R_{1,3} = -6*0 + 5 = 5$

Thus, the filled matrix will be given by:

$\left[\begin{array}{ccc}0&29&|5\\1&-5&|0\end{array}\right]$

For another example where row operations are applied on a matrix, you can check brainly.com/question/18546657

6 0

3 years ago

PLEASE HELP !!!!!!!!!!!

Phoenix [80]

Polynomial :

${3x}^{2} - {5x}^{4} + 2x - 12$

${x}^{5} - {5x}^{4} + {4x}^{3} - {3x}^{2} + 2x - 1$

${x}^{3} - {7x}^{2} + 9x - {5x}^{4} - 20$
The rest are not polynomials.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

I hope that helps you out!!

Any more questions, please feel free to ask me and I will gladly help you out !

~Zoey

5 0

3 years ago