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IrinaK [193]
3 years ago
14

A bag contains 40 marble 12 red and 16 yellow what is the probability that a blue is randomly seclected

Mathematics
1 answer:
lora16 [44]3 years ago
7 0

Answer:

Fraction=3/10

Decimal=0.3

Percent=30%

Step-by-step explanation:

First we have to add 12+16 so we can find how many marbles are left

12+16=38

Then, we subtract it from the total number of marbles.the outcome of this operation would be equivalent to the number of blue marbles

40-38=12

There are 12 blue marbles.

Now, the we have to use experimental probability if you are familiar with the term is that the number of outcomes(the blue marbles) must be over the total sample space(total marbles) in a fraction.

Probability=

12/40

Simplify

12/40

6/20

3/10

Probability

Fraction=3/10

Decimal=0.3

Percent=30%

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Answer:

1/2 for red

2/3

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Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What is the slope of the line that passes through the points (1, 3) and (5, –2)?
Sergeu [11.5K]

m=-(5/4)

From left to right, (1,3) is first and then comes (5,-2). Always remember when finding slopes without equations, the rule is RISE over RUN, to the numerator and denominator, respectively.

The y value of the second coordinates becomes negative which is unlike the y value in the first coordinates, which means our slope is downward, meaning it has a negative sign in front.

In every slope, there’s a numerator, being the rise, and a denominator, being the run.

To find the rise, we must look at the y values. Starting at 3 going to -2 has a space of 5 units, making that our numerator.

To find the run, the first x value is 1 and the second is 5, making a space of 4, which is out denominator.

With these two numbers and the negative sign, we get -(5/4) as our slope.

7 0
2 years ago
Observe the table. How many times greater must the acceleration of Object B be than the acceleration of
gulaghasi [49]

Answer:

5

Step-by-step explanation:

You first start by finding the acceleration of the problem.

a=f/m

Which this case is 45.

The question is asking " How many times greater must it be than A?"

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Your final answer is 5.

3 0
2 years ago
Solve the system using the substituion method<br> -4x+y=8<br> x-3y=9
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Hi there!

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x = 9 + 3y
 
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-4(9+3y) + y = 8
-36 - 12y + y = 8
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x - 3y = 9
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Hope this helps!
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Schach [20]
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