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Anon25 [30]
2 years ago
10

There is a bag filled with 3 blue and 4 red marbles. A marble is taken at random from the bag, the colour is noted and then it i

s replaced. Another marble is taken at random. What is the probability of getting 2 of the same colour? need help with this im stuck pls explain how to do aswell
Mathematics
1 answer:
Morgarella [4.7K]2 years ago
8 0

altogether there are 7 marbles in the bag.

put the marbles in fractions, so blue would be 3/7

and red would be 4/7. but becuase you need 2 of the same, you do

3/7 x 3/7 = 9/49

4/7 x 4/7 = 16/49

then add them togther

25/49

if you need it as a percentage, it is

51.020408163265%

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PLEASE HELP ME!! I can’t figure this out
DochEvi [55]
Hello!

The problem has asked that we write a point-slope equation of the line in the image above. Point-Slope Form uses the following formula:

y – y_{1} = m(x – x_{1})

In this case, M represents the slope while X_{1} and Y_{1} represent the corresponding X and Y values of any given point on the line.

We are given that the slope of the line is -\frac{5}{7}. We also know that any given point on a graph takes the form (x,y). Based on the single point provided in the image above, we can determine that X_{1} is equal to 6 and Y_{1} is equal to 2. Now insert all known values into the point-slope formula above:

y – 2 = -\frac{5}{7}(x – 6)

We have now successfully created an equation based on the information given in the problem above. Looking at the four possible options, we can now come to the conclusion that the answer is C.

I hope this helps!

7 0
2 years ago
What is the equation of the graphed line in point slope form ?
mezya [45]

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6 0
3 years ago
How do I solved this problem <br> 7+9×3-1=25
Ierofanga [76]

Answer:33=25

Step-by-step explanation:

8 0
3 years ago
There are two numbers whose sum is 496 . One number is thrice the other . what are the numbers?
alexdok [17]
X + 3x = 496
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Another Number equal to 496-124 equal to 372
5 0
2 years ago
In one year, a school uses 13,170 pieces of white paper, 6,570 fewer pieces of blue paper than white paper, and 3,300 fewer piec
SIZIF [17.4K]

Answer:

23,070

Step-by-step explanation:

13,170-6570=6600

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13,170+6600+3300=23,070

The school uses 23,070 pieces of paper

3 0
3 years ago
Read 2 more answers
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