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pentagon [3]
2 years ago
11

A package of nine 12-ounce cans of cola costs $7.50. A half-gallon bottle of the same cola is sold for $2.90. Which cola has a c

heaper price, the cans or the bottle?
Mathematics
1 answer:
goldfiish [28.3K]2 years ago
6 0

Answer:

Cola bottles are cheaper. Mark me brainliest!

Step-by-step explanation:

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According to the American Lung Association, 7% of the population has lung disease. Of those having lung disease, 90% are smokers
postnew [5]

Answer:

Probability that a smoker has lung disease = 0.2132

Step-by-step explanation:

Let L = event that % of population having lung disease, P(L) = 0.07

So,% of population not having lung disease, P(L') = 1 - P(L) = 1 - 0.07 = 0.93

S = event that person is smoker

% of population that are smokers given they are having lung disease, P(S/L) = 0.90

% of population that are smokers given they are not having lung disease, P(S/L') = 0.25

We know that, conditional probability formula is given by;

                        P(S/L) = \frac{P(S\bigcap L)}{P(L)}  

                        P(S\bigcap L) = P(S/L) * P(L)

                                      = 0.90 * 0.07 = 0.063

So,  P(S\bigcap L) = 0.063 .

Now, probability that a smoker has lung disease is given by = P(L/S)

      P(L/S) = \frac{P(S\bigcap L)}{P(S)}

P(S) = P(S/L) * P(L) + P(S/L') * P(L')

       = 0.90 * 0.07 + 0.25 * 0.93 = 0.2955

Therefore, P(L/S) = \frac{0.063}{0.2955} = 0.2132

Hence, probability that a smoker has lung disease is 0.2132 .

7 0
3 years ago
Six pyramids are shown inside of a cube. The height of the cube is h units. The lengths of the sides of the cube are b.The area
Viefleur [7K]

Step-by-step explanation:

Cubes have square faces, so the area of the base is b².

The volume of the cube is b³.

The height of each pyramid is half the height of the cube, so h = b/2.  Which means b = 2h.

The cube is made of 6 square pyramids with the same base and height.  Therefore, each pyramid has 1/6 the volume of the cube.  So the volume of each pyramid is b³/6.

8 0
3 years ago
Which table represents a proportional relationships
Soloha48 [4]
I think The last one in right

y |2| 6 |10 |14
x |6 |18 |30 |42
6 0
3 years ago
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Write a few sentences about different was to show subtraction for a problem like 32-15
iogann1982 [59]
I had 32 cookies and I wanted to give 14 of my friends a cookie each, how many cookies are left?


I went to the pet store with $32 and i bought a $15 for my dog, how much money do I have left?



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3 years ago
one number is 7 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 307,
Svetach [21]
The three numbers are 23, 161, and 123.
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