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kramer
3 years ago
8

There are 5 marbles in a bag: 4 are blue and 1 is red. What is the probability that a blue marble gets picked?

Mathematics
2 answers:
Xelga [282]3 years ago
4 0

Answer:

in fraction form that is 4/5   or .8 chance of getting a blue marble

Step-by-step explanation:

because you divide  the number of possible  winning out comes 4 marbles  by the total  event 5 marbles

charle [14.2K]3 years ago
3 0

Answer:

the answer is 80%

Step-by-step explanation:

4/5 = 80%

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a survey asked 72 randomly chosen students if they were going to attend the school play. twelve said yes. if there are 210 ticke
Ugo [173]
We can solve this by setting up a proportion:

12 seeing the play/ 72 students = 210 seeing the play/ x students

We can cross multiply to solve for x:

(12)x=(72)(210)
12x=15,120
x=1,260 students who attend the school
4 0
3 years ago
Which of the following statements is not true?
icang [17]

Answer:

-3.7 > -3.1

Step-by-step explanation:

Because -3.1 more close to 0 so is supposed to be bigger than -3.7

8 0
2 years ago
Use the estimate in the text based on the Prime Number Theorem to give approximate values of the following. (a) The number of pr
ozzi

Answer:

a)148.47

b)148.34

Step-by-step explanation:

Let π(x) be the prime-counting function that gives the number of primes less than or equal to x, for any real number x. For example, π(7) = 4 because there are four prime numbers (2, 3, 5, 7) less than or equal to 7.

We can see that π(7)=π(10) because there are four prime numbers (2,3,5,7) less than or equal to 10.

A good aproximation for π(x) is x / log x, where log x is the natural logarithm of x.

a)The number of primes between 1 and 1030.

1030/log(1030)=148.47

b) The number of primes between 1 and 1029.

1029/log(1029)=148.34

 Extra: π(1029)=π(1030) because 1030 is not a prime.

5 0
3 years ago
Please help with 1. I am confused
d1i1m1o1n [39]
It would be 9, 9 1/2, 10, and 10 1/2. I think.
4 0
3 years ago
Read 2 more answers
A lunch menu has 4 different sandwiches, 2 different soups, and 5 different drinks. How many different lunches consisting of a s
oksian1 [2.3K]
To find out all of the possible combinations, just multiply the amount of each variable:

4*2*5 = 40

There are 40 different combinations consisting of a sandwich, soup, and drink.
5 0
3 years ago
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