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grigory [225]
3 years ago
13

The probability of a dry summer is equal to 0.3, the probability of a wet summer is equal to 0.2, and the probability of a summe

r with normal precipitation is equal to 0.5.
what is the probability of observing two dry summers?
what is the probability of observing at least 2 dry summers?
what is the probability of not observing a wet summer?
Mathematics
1 answer:
brilliants [131]3 years ago
4 0

Answer:

s

Step-by-step explanation:

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Hey! please help i’ll give brainliest
Anuta_ua [19.1K]

Answer:

b

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Need help with this geometry question, solving for x and please explain the formula for this
Alborosie
Alright, so what we can take as a given is that arcDE/2= ∠CDE=2x+20 since the arc corresponding to the angle is 2*the angle. To solve for arcDE, we multiply both sides by 2 to get 2(2x+20)=4x+40=arcDE. Since the arcs in a circle add up to 360 degrees and we only have -20+30x and arcDE, we have -20+40+4x+30x=360 using the associative property. Simplifying, we get 20+34x=340. Subtracting 20 from both sides, we get 340=34x. Next, we can divide both sides by 34 to get 10=x. 
3 0
3 years ago
What would be values in order from least to greatest? 0.45, 3/4, 5/8, 0.5
deff fn [24]
It is 0.45; 0.5; 5/8; 0.75. Hope it helps!
6 0
3 years ago
Read 2 more answers
You need to choose a shipping company. Ship fast charges $2.00 per package plus $1.00 per pound. Speedy Delivery charges $3.00 p
Sholpan [36]
Ship fast equation for n packages:
2n+(1)x
where x the weight of the packages
Speedy delivery equation for the number of packages:
3n+(0.50)x

The same price happened when:
2n+(1)x = 3n+(0.50)x
x - 0.5x=3n - 2n
x = n/0.5
x = 2n
when the package weight is 2 pounds
7 0
3 years ago
Susan has 4 times as many quarters as dimes and 16 less dimes than nickels. If she has $13.45 in coins. How many of each coin do
Maslowich

Using a system of equations, it is found that Susan had 44 quarters, 11 dimes and 27 nickels.

--------------------------------

We are going to use:

  • x as the number of quarters.
  • y as the number of dimes.
  • z as the number of nickels.

A <em>quarter </em>is worth $0.25. A <em>dime </em>is worth $0.1, and a <em>nickel </em>is worth $0.05. Total of $13.45, then:

0.25x + 0.1y + 0.05z = 13.45

4 times as many <u>quarters as dimes</u>, thus:

x = 4y \rightarrow y = 0.25x

16 less <u>dimes than nickels</u>, thus:

z = y + 16 = 0.25x + 16

Replacing in the first equation, we find x:

0.25x + 0.1y + 0.05z = 13.45

0.25x + 0.1(0.25x) + 0.05(0.25x + 16) = 13.45

0.2875x = 12.65

x = \frac{12.65}{0.2875}

x = 44

Now, with x, we find y and z:

y = 0.25x = 0.25(44) = 11

z = y + 16 = 11 + 16 = 27

Susan had 44 quarters, 11 dimes and 27 nickels.

A similar problem is given at brainly.com/question/24342899

4 0
2 years ago
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