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Alborosie
4 years ago
5

Suppose the newspaper states that the probability of rain today is 65%.

Mathematics
2 answers:
antoniya [11.8K]4 years ago
7 0

Answer:

<h2><em><u>35% No Rain Today</u></em></h2>

Step-by-step explanation:

<u>0.65 plus p(complement) = one</u>

<u>P(Complement) = 1 minus 0.65 = 0.35 = 35%</u>

<u>I know this as well because I took the test with the same question</u>

Julli [10]4 years ago
4 0

Answer:

no rain today = 35%

Step-by-step explanation:

In probability, the Complement Rule states that the sum of the probability of an event and its complement must = 1

i.e

P( Event) + P (Complement) = 1

In this sense, we can think of the complement of an event as the "not-event". I.e the event does not happen.

In our case, the event = "rain today",

hence the complement will be = "not rain today" (i.e no rain today)

using the formula above, we are given that P(rain today) = 65% = 0.65

hence

0.65 + P(Complement) = 1

P(Complement) = 1 - 0.65 = 0.35 = 35%

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How many solutions does the equation 3x + 6 = −1 − 3 + 4x have? (5 points)
lianna [129]

Answer:

The equation has only one solution which is:

  • x = 10

Step-by-step explanation:

Given the equation

3x\:+\:6\:=\:-1\:-\:3\:+\:4x

Let us solve the equation to determine the type of the equation

3x\:+\:6\:=\:-1\:-\:3\:+\:4x

subtract the number: -1 - 3 = -4

3x+6=4x-4

subtract 6 from both sides

3x+6-6=4x-4-6

3x=4x-10

subtract 4x from both sides

3x-4x=4x-10-4x

-x=-10

Divide both sides y -1

\frac{-x}{-1}=\frac{-10}{-1}

x=10

Therefore, the equation has only one solution which is:

  • x = 10
7 0
3 years ago
Expand to write an equivalent expression:
LUCKY_DIMON [66]

Answer:

kindly put the complete question because you just wrote the question without the equation

8 0
2 years ago
I NEED HELP PLEASE !!!
laila [671]

Answer:

D. 1/44

Step-by-step explanation:

divide both sides by the # in front of X - in this case its 6. you should get x= 3/22 ÷ 6 and get your answer there by plugging in the calculator. or on paper-

do 3/22 × 1/6 which is also reduced to --> 1/22 × 1/2 and that is 1/44 but you should be able to jist plug 3/22÷ 6 in if you take middle/highschool math anyways

5 0
3 years ago
What is the probability that a student eye color would be blue if their grade in physics is A? A two way table is presented belo
Zarrin [17]
The <u>correct answer</u> is:

16/45.

Explanation:

We want the probability that a student's eye color is blue if they made an A in physics.  This means we look at the column for students with an A.

There are 32 students with blue eyes in the A column.

This is out of 32+58=90 students that made an A.

This makes the probability 32/90, which simplifies to 16/45.
8 0
3 years ago
Work out the percentage change when a price of £70 is decreased to £49 ​
Monica [59]

Answer:

30% decrease in price

Step-by-step explanation:

Since 70-49=21, we know that the price decreased by 30 pounds. The formula to find a percentage decrease is that you should then divide the original number(70) by 21(that equals 0.3!) 0.3 as a percentage would then be 30%, so the answer is there is a 30% decrease in price.

5 0
3 years ago
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