I also need work for these 2 questions

Mathematics

2 answers:

frozen [14]3 years ago

7 0

question 1: irrational,real

question 2: rational,real

Ilia_Sergeevich [38]3 years ago

5 0

Answer:

question no 1 answer= irrational, real

question no 2 answer=rational, real

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From a pile of 100 pennies(P), 100 nickels(N), and 100 dimes(D), select 21 coins which have a total value of exactly $1.00. In y

Murrr4er [49]

So, you need 10 penny, 4 nickles and 7 dimes
Lets, check it.
According to the question,
total coins = 21
7 + 4 + 10 = 21
21 = 21.........................................true
Now,
their value should equal $1.00 = 100 cents
Penny = 1 cent
nickle = 5 cent
dime = 10 cent,
So,
(10 *1) + (4 * 5) + (7 * 10) = 100
10 + 20 + 70 = 100
100 = 100......................................true

So, you need 10 penny, 4 nickle, and 7 dimes

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3 years ago

A.240 B.360 C.480 D.720

diamong [38]

Answer is D. 720 Hope this helps

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2 years ago

Two students from a group of eight boys and 12 girls are sent to represent the school in a parade.

harkovskaia [24]

The answer is 62/95. You determine this by calculating the probability of both students being girls.

Probability first student is girl: 12/20
Probability second student is girl: 11/19
Multiply 12/20 * 11/19 = 132/380 or 0.347
Probability of both students not being girls: 1 - 0.347 = 0.653 or 62/95

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3 years ago

Read 2 more answers

A spinner divided into four equal parts, A, B, C, and D, is spun, then is followed by a roll of a standard six-sided die.

gavmur [86]

Answer: 24

Step-by-step explanation:

Total Possible Outcomes given A, B, C, D and 1, 2, 3, 4, 5, 6

= 4 x 6

= 24

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Answer: 3