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olga nikolaevna [1]
3 years ago
10

A bag contains 5 red marbles, 7 blue marbles and 8 green marbles. If three marbles are drawn out of the bag, what is the probabi

lity, to the nearest 10th of a percent, that all three marbles drawn will be green?
Mathematics
2 answers:
r-ruslan [8.4K]3 years ago
4 0

Answer:

8/20 or 4 percent

Step-by-step explanation:

BigorU [14]3 years ago
4 0

Answer:

4.9%

Step-by-step explanation:

There are a total of 20 marbles.

The probability that the first marble is green is 8/20.

The probability that the second marble is green is 7/19.

The probability that the third marble is green is 6/18.

The total probability is:

P = (8/20) (7/19) (6/18)

P ≈ 0.049

The probability is 4.9%.

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Chris requires three fifths liter of paint to complete a poster. He has one half liter of paint. Which equation can be used to f
Makovka662 [10]

Answer:

d the expression with the fractions three fifths minus one half is equal to the expression with the fractions six tenths minus five tenths is equal to the fraction one tenth

Step-by-step explanation:

Chris requires three fifths liter of paint to complete a poster. He has one half liter of paint. Which equation can be used to find the fraction of a liter of paint Chris still needs to complete the poster?

The fraction of a liter Chris requires to complete his painting is given as:

3/5 liter = 1/2 liter + x

x = 3/5 - 1/2

Lowest Common Denominator = 10

x = 6 - 5/10

x = 1/10

option d is the correct option.( the expression with the fractions three fifths minus one half is equal to the expression with the fractions six tenths minus five tenths is equal to the fraction one tenth)

6 0
3 years ago
Need to find A and B, I already found C
Semenov [28]
I'm going to assume you've learn sin, cos, and tan. To find a you must do:
sin^{ - 1}  =  \frac{a}{12}
Once you find a, you can use the Pythagorean Theorem to find b:
{a}^{2}  +  {b}^{2}  =  {c}^{2}
Or you can do:
cos^{ - 1}  =  \frac{b}{12}
You can find these functions on a scientific calculator. Let me now if you need more help.

5 0
3 years ago
Can someone please help me???????
KonstantinChe [14]

Answer:

9xy|xy|

Step-by-step explanation:

25xy*V81x^2y^2/V625=25xy*9|xy|/25=9xy|xy|

4 0
3 years ago
i have the same hundreds digits as ones. the value of my tens digit is 50. The value of my ones digit is four. the 3 digits are
Anna [14]
454

check...
same hundreds digit as ones : correct
value of tens digit is 50 : correct
value of ones digit is 4 : correct
6 0
3 years ago
Help me please . Very much appreciated​
daser333 [38]

Answer:

126

Step-by-step explanation:

multuply the base times the hight in which case the base is 21 and the hight is 12 then devide that answer by 2. so it should look like this 21 * 12 all over 2

4 0
3 years ago
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