MATHEMATICS COLLEGE

In a survey of a community, it was found that 85% of the people like winter season and 65% like summer season. If none of them did not like both seasonsi) what percent like both the seasons
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Answers

Answer 1
Answer:

Answer:

50%

Step-by-step explanation:

Let :

Winter = W

Summer = S

P(W) = 0.85

P(S) = 0.65

Recall:

P(W u S) = p(W) + p(S) - p(W n S)

Since, none of them did not like both seasons, P(W u S) = 1

Hence,

1 = 0.85 + 0.65 - p(both)

p(both) = 0.85 + 0.65 - 1

p(both) = 1.50 - 1

p(both) = 0.5

Hence percentage who like both = 0.5 * 100% = 50%

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What is the inverse for this problem?

Answers

replace f(x) with y:

y = 3x +2 

interchange the variables:

x = 3y +2
 
switch the equation so the Y is on the left side:
3y +2 = x

subtract 2 from each side:
3y = x-2

divide each term by 3 to get y alone:

y = (x-2)/3

replace y with inverse of F(x) which is f^-1(x):

f^-1(x) = -(x-2)/3

HELP WILL MARK BRAINLIEST

Answers

Answer:

(-3,-1)

Step-by-step explanation:

You can graph both of the points on desmos, and then look at the slope from p1 to the midpoint. so you can get the slope, and use it to get the p2. the slope is -4/6. So you get that answer.

The function A(r)=πr^2 may be used to find the area of a circle with radius r. Find the area of a circle whose radius is 11 centimeters. Please help me ASAP!!!!!!! :(

Answers

Just evaluate the function: A(r) = πr² by substituting 11 in for 'r'

so A(11) = π(11)²

or Area = 121π

your car weighs 7,630 pounds. There is a road safety fee for cars. you fee is $28 plus $0.023 per pound. What is the fee for your car?

Answers

Answer:

Step-by-step explanation:

7630 x .023 = 175.49

175.49 + 28 = $203.49

Jessica's annual salary decreased by 3800, which was a 9% decrease. what was Jessica's original salary?​

Answers

The original annual salary of Jessica is 42222

Let the original annual salary of Jessica be represented by x.

Percentage decrease in salary = 9%

Amount of the decrease = 3800

Therefore, based on the information given, the equation to solve the question will be:

9% × x = 3800

0.09 × x = 3800

0.09x = 3800

Divide both side by 0.09

0.09x/0.09 = 3800/0.09

x = 42222

Therefore, the original annual salary of Jessica is 42222.

Read related link on:

brainly.com/question/19063587

Answer:

Step-by-step explanation:

x = original salary

$3800 = (1-9%)x = (1-0.09)x = 0.91x

x = $3800/0.91 = $4175.82

Mr. Markle has a jar on his desk that contains 10 marbles shown. What is the likelihood that a red marble will be chosen?

Answers

10 percent chance should be the right answer

Answer:

10% or 1/10 Or very Low ..
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