There is a 20% chance that it will snow on Monday and a 40% chance on Tuesday. What is the probability that it will NOT snow on both Monday and Tuesday?

Answers

Answer 1
Answer: P(Event) = 4/5 * 3/5 = 12/25

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

Y=Yes=Will Snow

N=No=Won't Snow

There is a 20% chance (1/5) that it will snow on Monday. This means that there is an 80% (4/5) chance that it won't snow on Monday.

Y, N, N, N, N

There is a 40% chance (2/5) that it will snow on Tuesday. This means that there is a 60% chance (3/5) that it won't snow on Tuesday.

Y, Y, N, N, N

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

Create a table for combinations N, N or Y, N or N, Y or Y, Y:

*Where N, N place (X). Where Y, N or N, Y or Y, Y - place (O).

   : Y  N  N  N  N
.................................
Y : O  O  O  O O
Y : O  O  O  O O
N : O  X  X  X  X
N : O  X  X  X  X
N : O  X  X  X  X

The combination N, N represented with (X) appears 12 times out of 25 which is your answer (12/25).
Answer 2
Answer: . Solve: 5x < 9x-1 / 2 

-4x < - 1/2 , now divide by -4 and switch signs 

x > 1/8 


2. There is a 20% chance that it will snow on Monday and a 40% chance on Tuesday. What is the probability that it will NOT snow on both Monday and Tuesday? 

P( NOT snow on both Monday and Tuesday) = (1-.2)(1-.4) = 12/25 

c. 12/25 


3. The total cost of renting a sailboat is $120 plus $60 a day. How many days was a sailboat rented if the total cost was $360? Solve. 

120 + 60d = 360 

60d = 360 - 120 = 240 

d = 4 



4. Two cards are chosen at random without replacement from a deck of 52 cards containing 4 kings. Which expression could be used to find the probability of choosing two kings? 

b. 4/52 x 3/51 

There are 4 x 3 ways to pick 2 kings 

There are 52 x 51 ways to pick any two cards


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the melting point of mercury is -36 Fahrenheit and its boiling point is 672 Fahrenheit what is the difference between these two temperatures

Answers

Answer:

708 Fahrenheit

Step-by-step explanation:

672 + 36 = 708

You add the 36 because it is a negative number and since you are trying to find the difference, for every negative number you have to add 1.

Can someone help me with number 2. Please explain your answer.

Answers

4x+y = 20
3x+y = 2
4x+y-3x-y = 20-2
x = 18

3x+y = 2
3.18 + y = 2
54 + y = 2
y = -52

88% of what number is 66? A.
75


B.
58.08


C.
1.3


D.
0.75

Answers

let the unknown number be x 
88% * x= 66 (divide both sides by 88%)
x= 66/88%
x= 75
Therefore the answer is A) 75
if the unknown number be x, then 
88 multiply x is 66
then we need divide both sides by 88
x = 66 : 88
x = 0.75
Now we need 0.75 multiply 100(%) and we get 75
Therefore the answer is

A) 75

56980 rounded to the nearest hundreds

Answers

56,980 rounded to the nearest hundreds is 56,900.

To round the number 56,980 to the nearest hundreds, we need to look at the digit in the hundreds place, which is 9. The rule for rounding is to examine the digit to the right of the place you want to round to, in this case, the digit in the tens place. If that digit is 5 or greater, you round up; if it's less than 5, you round down.

In 56,980, the tens digit is 8, which is less than 5. Therefore, we don't need to round up. We simply drop the digits to the right of the hundreds place, which are the tens and ones digits. The hundreds digit (9) remains the same.

So, rounding 56,980 to the nearest hundreds gives us:

56,900

In this rounded number, the hundreds place (9) is unchanged, and the digits in the tens and ones places (8 and 0) have been dropped.

To understand it visually, think of 56,980 on a number line. When you round to the nearest hundreds, you're essentially finding the closest multiple of 100. In this case, 56,980 is closest to 57,000, which is why we round down to 56,900.

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Answer:

57,000

Step-by-step explanation:

Explain how you would find 36 x 3/4 mentally

Answers

Ok so first what you need to do is think about the question because this is a very simple question to understand and as they say nothing in this world is easy so you have to think about it and once you think about it and understand what they are asking you then you could solve and its very simple. 1st you have to follow order of operations which PEMDAS and I think you should be familiar using this strategy because I am very accoustomed to it and you should be as well, anyway, first do multiplication because in PEMDAS the m comes before the d which stands for division. So do 36x3 which is 108 and now we could do the final step which is to divide our product, 108, by 4 and the quotient shall be 27 as our final answer. So hope this helped you out and if it did than awesome and thank you for the question by the way so keep on asking questions!!

Calculating 36 x 3/4 gives you the result of 27.

To find 36 multiplied by 3/4 mentally, you can follow these steps:

1. Simplify the fraction: 3/4 can be simplified by dividing both the numerator and the denominator by their greatest common divisor, which is 1 in this case.

This simplification leaves us with 3/4 as the fraction.

2. Convert the whole number to a fraction:

Since 36 is a whole number, we can rewrite it as a fraction with a denominator of 1. So, 36 can be expressed as 36/1.

3. Multiply the numerators: Multiply the numerators of the fractions together: 36 x 3 = 108.

4. Multiply the denominators: Multiply the denominators of the fractions together: 1 x 4 = 4.

5. Write the result as a fraction: Take the product of the numerators and write it over the product of the denominators: 108/4.

6. Simplify the fraction if possible: Divide both the numerator and the denominator of the fraction by their greatest common divisor, which is 4 in this case. Simplifying the fraction gives us 27/1 or simply 27.

Therefore, mentally calculating 36 x 3/4 gives you the result of 27.

Learn more about fraction here:

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If you flip three fair coins what is the probability that the two first flips will both be heads, and the third flip will be either heads or tales?

Answers

Answer:

The probability that a coin flip is a head or a tail is 0.5. The probability that a coin flip is either a head or a tail is 1. The probability that a three-coin-flip is two heads and a head or a tail is 0.25.

Step-by-step explanation: