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maxonik [38]
4 years ago
6

A bag contains 20 marbles of which 4 are red what is the probability that a randomly selected marble will be red

Mathematics
1 answer:
agasfer [191]4 years ago
5 0

Answer:

1/5

Step-by-step explanation:

4 of the 20 marbles are red, so the probability is 4/20 = 1/5.

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michelle divided 1 pizza into equal slices to share with his friends.they ate the entire pizza. which expression could not repre
user100 [1]
The answer is c. you should know 
3 0
3 years ago
System of equations <br> 5x+y=7<br> 20x+2=y
KIM [24]
Dependent

The general form for a pair of linear equations in two variables x and y is
and

----- (1)
----- (2)
Comparing equations 1 and 2 with the general form of equation to write their co-efficient,

Compare the ratio,

If , then the pair of linear equations has exactly one solution.
So, it said to be consistent.
7 0
4 years ago
Y=x<br> y=-6x–14<br><br> (substitution method)
olga_2 [115]

Answer:

The solution is the point (-2,-2)

Step-by-step explanation:

we have

y=x ----> equation A

y=-6x-14 ----> equation B

Solve the system by substitution

substitute equation A in equation B

x=-6x-14

Solve for x

6x+x=-14\\7x=-14\\x=-2

Find the value of y

substitute the value of x in the equation A

y=x

so

y=-2

therefore

The solution is the point (-2,-2)

3 0
4 years ago
jeff's trip will cost 9$ if he has 2 attendees at the conference.If there are 18 attendees,how much will the trip cost jeff​
antoniya [11.8K]

Answer:

$81

Step-by-step explanation:

9/2 = 4.5

4.5 x 18 = 81

5 0
3 years ago
Karen got a bit confused in math class today when Mrs. Hudson was talking about the different subsets for classifying real numbe
VashaNatasha [74]
Let me give the significations following
natural numbers :ACA  counting numbers the numbers you naturally say when counting.
whole numbers: include all natural numbers zero
Integers: include all whole numbers and their opposites.
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Irrational: can not be written a fraction, decimals, do not terminate or repeat.




4 0
4 years ago
Read 2 more answers
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