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yulyashka [42]
3 years ago
8

A recent survey showed that 102 adults out of a sample of 400 do not like cold weather. However, 115 of those studied said that

they had interest in taking skiing lessons. Based on this sample, if an adult is chosen at random, what is the probability that he or she has no desire to take skiing lessons? Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.
Mathematics
1 answer:
kifflom [539]3 years ago
7 0

Answer:

Probability that he or she has no desire in skiing lessons is 57/80

Step-by-step explanation:

Probability is given by number of possible outcomes ÷ number of total outcomes

Probability he or she has interest in skiing lessons is 115/400

Probability he or she has no interest in skiing lessons is 1 - (115/400) = 285/400 = 57/80

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Charlie knows that 3 blocks are needed to make a tower that is 0.5 foot high.
iogann1982 [59]

Answer:

24 blocks will be needed to make the tower that is 4 feet high

Step-by-step explanation:

Let us use the ratio method to solve the question

∵ Charlie knows that 3 blocks are needed to make a tower that is

   0.5 foot high

∵ He needs to make a tower that is 4 feet high

→ By using the ratio method

→  Blocks  :  height (ft)

→   3          :   0.5

→   x          :   4

→ By using the cross multiplication

∵ x × 0.5 = 3 × 4

∴ 0.5x = 12

→ Divide both sides by 0.5 to find x

∵ \frac{0.5x}{0.5} = \frac{12}{0.5}

∴ x = 24

∵ x represents the number of blocks

∴ 24 blocks will be needed to make the tower that is 4 feet high

7 0
3 years ago
Write a rule to describe the transformation. A. Rotation 90º clockwise about the origin B. Rotation 180º about the origin C. Rot
Alex_Xolod [135]

Answer:

A. Rotation 90º clockwise about the origin B. Rotation 180º about the origin C. Rotation 90º counterclockwise about the origin D. Reflection across y=x

Step-by-step explanation:

because

4 0
3 years ago
Read 2 more answers
Jina wanted to study how the area of a rectangle changes with the length if it’s width is fixed. She computed the areas of sever
olganol [36]

Answer:

The domain and the range of the function are, respectively:

Dom\{f\} = [0\,m,5\,m]

Ran\{f\} = [0\,m^{2}, 10\,m^{2}]

Step-by-step explanation:

Jina represented a function by a graphic approach, where the length, measured in meters, is the domain of the function, whereas the area, measured in square meters, is its range.

Dom\{f\} = [0\,m,5\,m]

Ran\{f\} = [0\,m^{2}, 10\,m^{2}]

8 0
3 years ago
10 points!!
Monica [59]
The equation would be 1.65 + y - 0.15 + 0.45 = ? If you combine like terms you get B) 1.95 y as your answer. I hope this helps!
6 0
3 years ago
Read 2 more answers
Help me! Thanks a lot.
kari74 [83]

Answer:

4

Step-by-step explanation:

1 x 24

2 x 12

3 x 8

4 x 6

8 0
4 years ago
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