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AleksAgata [21]
3 years ago
6

What is the best method to use to determine probabilities that are unknown?

Mathematics
1 answer:
marishachu [46]3 years ago
4 0
I this k the one would be B
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I need help i am taking a test i need help
Pachacha [2.7K]

Answer:

91 degrees

Step-by-step explanation:

4 0
3 years ago
3 erasers cost $4.41. Write a proportion that would solve for the cost of 4 erasers.
Bess [88]

Answer:

$5.88

Step-by-step explanation:

3 erasers ⇒ $4,41

4 erasers ⇒ $A

A = 4 erasers * $4.41 / 3 erasers

A = $ 5.88

7 0
2 years ago
Read 2 more answers
You draw 4 cards from a deck of 52 cards with replacement. What are the probabilities of drawing a black card on each of your fo
lawyer [7]

Solution:

As, in a pack of cards, there are 26 black cards and 26 red cards.

Probability of an event = \frac{\text{total favorable outcome}}{\text{total possible outcome}}

Probability of drawing a black card from a pack of 52 cards = \frac{26}{52}=\frac{1}{2}

As each card drawn is replaced,Each black card draw is an independent with another black card draw.

Probabilities of drawing a black card on each of  four trial=

  \frac{1}{2}\times \frac{1}{2}\times \frac{1}{2}\times \frac{1}{2}=[\frac{1}{2}]^4

4 0
3 years ago
Read 2 more answers
Help please ............
castortr0y [4]
1 IS C 
2 IS B ( you add numbers with the same power)

7 0
4 years ago
At the movie theatre, child admission is $5.50 and adult admission is $8.60 . On Thursday, twice as many adult tickets as child
kirza4 [7]

Let child admissions be x and adult admissions be y. We can then use the information given to form a system of equations and solve that system.

The first equation is based on the information about the money made.

5.50x+8.60y=726.40

The second equation is based on the fact that twice as many adult tickets as child tickets were sold.

y = 2x

Since we have an equation equal to one of the variables, substitution will be the easiest way to solve this system. This is when we replace the variable of an equation with its value in the other.

5.50x+8.60y=726.40

5.50x+8.60(2x)=726.40

5.50x+17.2x = 726.40

22.7x = 726.40

x = 32

The number of children tickets sold was 32.

Extra:

To find the number of adult tickets can be found by plugging in the known value we found and solving for the other unknown.

y = 2x

y = 2(32)

y = 64

The number of adult tickets sold was 64.

7 0
3 years ago
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