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kotykmax [81]
2 years ago
9

There is a bag with only red marbles and blue marbles. The probability of randomly choosing a red marble is 2 9 . There are 45 m

arbles in total in the bag and each is equally likely to be chosen. Work out how many red marbles there must be
Mathematics
1 answer:
pogonyaev2 years ago
7 0

Answer:

10 red marbles

Step-by-step explanation:

Total= 45 marbles

Probability of red= 2/9

Number of red= 45*2/9= 10

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Ms. Zab gave a group of 5 students a total of 18.75 liters of water for a science experiment. If each student in the group used
wlad13 [49]

Answer: The quantity of the water received by each student = 3.75 liters.

Step-by-step explanation:

Given: Total water = 18.75 liters

Total students =5

If each student in the group used the same amount of water for their experiment, then the quantity of the water received by each student = \dfrac{\text{Total quantity}}{\text{Total students}}

=\dfrac{18.75}{5}\\\\=3.75\ liters

The quantity of the water received by each student = 3.75 liters.

4 0
2 years ago
Bailey's rectangular dog pen for his Irish Setter must have an area of 400 square feet. Also, the length must be 20 feet longer
Iteru [2.4K]
Hello.


400=(x+20)x is the equation or 400=x^2+20x 


<span>(x+10)=square root of 500 
</span>

<span>so x+10=10 radical 5 
</span>


<span>final answer -10 + or - 10 radical 5=x 
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Have a nice day
8 0
3 years ago
What is the perimeter of this figure to the nearest unit? (NO decimals. If your answer has a .5 or up, round up. If your answer
NARA [144]

Answer:

i dont see the figure

Step-by-step explanation:

hjo

6 0
2 years ago
Which of the following is an even function?
nika2105 [10]

Answer:

An even function is:

f(x) = 7

Step-by-step explanation:

An even function accomplish the following condition:

f(x)=f(-x) (1)

Applying (1), we have:

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The last one is even.

3 0
3 years ago
Is (2, 3) a solution to this system of equations?<br> y :<br> = x + 2<br> -1<br> y = -x + 4<br> 2
MakcuM [25]

Step-by-step explanation:

so blue and pink = purple      Yellow and red = orange    

8 0
2 years ago
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