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SCORPION-xisa [38]
3 years ago
5

Is the square root of 9 rational

Mathematics
2 answers:
aleksley [76]3 years ago
7 0

Answer:

3

Step-by-step explanation:

3*3=9

marin [14]3 years ago
6 0

Answer: Yes

Step-by-step explanation: 9 is a perfect square. In other words, it's possible to find a whole number that can be multiplied by itself which gives us 9. In this case, the number would be 3 since 3 × 3 or 3² gives us a product of 9.

3 is a natural number and all natural numbers are contained within the set of rational numbers. Therefore, the square root of 9 is rational.

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Lainey bought a set of 20 makers for $6 what is the cost of 1 marker? <br>​
loris [4]

Answer:

0.30

Step-by-step explanation:

$6 Total

20 markers

6/20=0.30

0.3 per maker.

Cost of 1 marker is $0.30

6 0
3 years ago
Identify the solution(s) of the system of equations, if any.<br> -6x - 4y = 12<br> 12y = -18x - 36
UkoKoshka [18]
-6x - 4y = 12|\div 2\\&#10;12y = -18x - 36|\div 6\\\\&#10;-3x-2y=6\\&#10;2y=-3x-6\\\\&#10;-3x-2y=6\\&#10;-3x-2y=6

Both equations are equivalent, so there are infinitely many solutions.
5 0
3 years ago
A bag contains 150 marbles. Some are blue, and the rest are white. There are 21 blue marbles for every 4 white marbles. How many
Olin [163]

Given:

Total number of marbles in the bag = 150

There are 21 blue marbles for every 4 white marbles.

To find:

The number of blue marbles in the bag.

Solution:

Since, there are 21 blue marbles for every 4 white marbles, therefore the ratio of blue marble to white marbles is 21:4.

Let the number of blue marbles be 21x and white marbles be 4x.

Total number of marbles in the bag = 150

21x+4x=150

25x=150

Divide both sides by 25.

x=\dfrac{150}{25}

x=6

Now,

\text{Blue marbles}=21x

\text{Blue marbles}=21(6)

\text{Blue marbles}=126

Therefore, the number of blue marbles is 126.

8 0
3 years ago
A rectangular flower garden in Samantha's backyard has 100 feet around its edge. The width of the garden is 20 feet.
Mrac [35]

Answer:

Step-by-step explanation:

Total= 100 Ft

Width= 20

Length=?

Total - Width = Length

100 - 20 =

80 Length Of the Garden

4 0
3 years ago
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qwelly [4]

Answer:
28.26

Step-by-step explanation:

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