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natta225 [31]
3 years ago
14

A survey found that 43% of people in Townsville own a desktop computer, 25% own a laptop and 8% own both a desktop and a laptop.

If one person from Townsville was selected at random, then the probability that the person owns either a desktop or a laptop is
Mathematics
1 answer:
SIZIF [17.4K]3 years ago
6 0

Answer:

60 %

Step-by-step explanation:

Let D be event of owning a desktop computer and L be a laptop. The Probability of D or L = P(D or L) = P(D) + P(L) - P(D and L) = .43 + .25 - .08 = .60 = 60%.

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The state of Maryland charges a 6% sales tax on most merchandise sold. you purchase a new shirt for 25% how much do you pay?
Yuri [45]
If your question is 25 dollars for the shirt then the ansewer is $26.5 hope this helps.
3 0
3 years ago
Clear parentheses and combine like terms:​
mihalych1998 [28]

Answer:

-3p - p²

Last option

Step-by-step explanation:

Step 1: Write out expression

2p - 7p² - 5p + 6p²

Step 2: Combine like terms (p²)

-p² + 2p - 5p

Step 3: Combine like terms (p)

-p² - 3p

Step 4: Rewrite

-3p - p²

7 0
3 years ago
3a/(a+1)^2<br> Give the equivalent numerator if the denominator is (a + 1)³.
zlopas [31]
Given 3a/(a+1)^2
To make the denominator a cube, you would have to multiply by 1 or (a+1)/(a+1)
yielding 3a(a+1)/(a+1)^3
(3a^2 + 3a) is the equivalent numerator
3 0
3 years ago
Read 2 more answers
The larger of two numbers is 5 more than the smaller. The smaller number plus the larger equals 100. Find the number.
I am Lyosha [343]

Answer:

Smaller number-47.5

Larger number-52.5

Step-by-step explanation:

We will make the smaller number x. If the smaller number is x, then the larger number will be equal to x+5. We also know that when we add the two numbers, we get 100. We can make the equation

x+x+5=100

100-5=95

2x=95

95/2=47.5

x=47.5

The smaller number equals 47.5 and the larger number is 47.5+5 which equals 52.5

6 0
2 years ago
On hot, sunny, summer days, Jane rents inner tubes by the river that runs through her town. Based on her past experience, she ha
Sveta_85 [38]

Answer:

a. P(X=50)= 0.36

b. P(X≤75) =  0.9

c. P(X>50)=  0.48

d. P(X<100) = 0.9

Step-by-step explanation:

The given data is

x                      25        50       75        100          Total

P(x)                0.16       0.36    0.38    0.10          1.00

Where X is the variable and P(X) = probabililty of that variable.

From the above

a. P(X=50)= 0.36

We add the probabilities of the variable below and equal to 75

b. P(X≤75) = 0.16+ 0.36+ 0.38= 0.9

We find the probability of the variable greater than 50 and add it.

c. P(X>50)= 0.38+0.10=  0.48

It can be calculated in two ways. One is to subtract the probability of 100 from total probability of 1. And the other is to add the probabilities of all the variables less than 100 . Both would give the same answer.

d. P(X<100)= 1- P(X=100)= 1-0.1= 0.9

8 0
3 years ago
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