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Ray Of Light [21]
1 year ago
14

when 5 times a number is increased by 10, the answer is the same as when 100 is decreased by the number. What is the number?

Mathematics
1 answer:
Tanzania [10]1 year ago
7 0

5x+10=100-x\\6x=90\\x=15

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Real estate ads suggest that 56 % of homes for sale have​ garages, 27 % have swimming​ pools, and 16 % have both features. ​a) W
Marizza181 [45]

Answer:

a) 0.4

b) 0.28

c) The events are not independent

d) The events are not mutually exclusive

Step-by-step explanation:

Hi!

Lets call:

Gar = {homes with garage}

Pool = {homes with pool},  

A = {homes with pool and garage}  = Gar ∩ Pool

The data we are given is:

P(Gar) = 0.56

P(Pool) = 0.27

P(A) = 0.16

a) B = {homes with garage but not pool}. This set B is the set Gar without set A: B = Gar / A  

P(B) = P(Gar) - P(A) = 0.4

b) This is a conditional probability:

P(Pool | Gar) = P(Gar ∩ Pool) / P(Gar) = 0.16/0.56 = 0.28

c) To be independent events, it must be, by definition:

P(Gar ∩ Pool) = P(Gar) * P(Pool)

0.16 ≠ 0.56*0.27 = 0.15

Then, the events Gar and Pool are not independent

d) Gar and Pool are not mutually exclusive, because there are houses with both pool and garage. We know that because P(A) is not zero.

5 0
3 years ago
List the coordinates for the plotted points A, B, C, and D.
avanturin [10]

Answer:

A= (3,1) ; B=(-2,-1) ; C=(-4,1) ; D=(-4,0)

Step-by-step explanation:

Plotted points are expressed by (x,y) , where the x is equal to the value that you read on the x plot and y is equal to the value that you read on the y plot.

8 0
3 years ago
The school baseball team had two new players and twenty two returning players if the coach put them into groups with three playe
Liula [17]

The school's baseball team had two new players and twenty-two returning players. If the coach put them into groups with three players in each group, how many groups would there

7 0
3 years ago
PLEASE HELP ME !! ITS DUE SOON
matrenka [14]

Answer: The answer is a A

5 0
2 years ago
Gillian gets paid 17 cents a tree for tree planting in northern British Columbia. In one week she planted 2437 trees. What is he
timama [110]

Answer:

$414.29

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

Well, you would simply need to multiply $0.17*2437

$0.17*2437 trees=$414.29

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

6 0
3 years ago
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