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lyudmila [28]
3 years ago
6

A card is randomly drawn from a deck of cards. (There are 52 cards in a deck, with 13 cards of each suit.) You record the follow

ing results for the experiment.
Hearts Clubs Spades Diamonds
Times Drawn 28 32 18 22
Which of the following are true?


The experimental probability of drawing a club is 32%.
The theoretical probability of drawing a diamond is 25%.
Based on the experimental probability, there would be 90 spades drawn in 500 trials.
Based on the theoretical probability, there would be 120 hearts drawn in 500 trials.
Mathematics
2 answers:
VikaD [51]3 years ago
7 0
I got the first option 
lyudmila [28]3 years ago
3 0
I believe it would be the first option but I'm not sure.
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5 0
4 years ago
The number of swimmers at a city pool on Monday was twice the number who were there on Tuesday. The number at the pool on Wednes
Aneli [31]

Answer:

102 1/3 swimmers

Step-by-step explanation:

Let

Number of swimmers on Tuesday = x

Number of swimmers on Monday = 2x

Number of swimmers on Wednesday = 3x - 11

Total swimmers for all 3 days = 625

x + 2x + (3x - 11) = 625

3x + 3x - 11 = 625

6x = 625 - 11

6x = 614

x = 614 / 6

= 102 2/6

x = 102 1/3 swimmers

Number of swimmers on Tuesday = x = 102 1/3 swimmers

Number of swimmers on Monday = 2x

= 2(102 1/3)

= 204 2/3

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=3(102 1/3) - 11

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= 296

6 0
3 years ago
K = 4a + 9ab solve for a
marysya [2.9K]

Answer:

a=\frac{K}{4+9b}

Step-by-step explanation:

K=4a+9ab

Switch sides:

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Factor out a:

a\left(4+9b\right)=K

Divide both sides by: (4+9b)

\frac{a\left(4+9b\right)}{4+9b}=\frac{K}{4+9b}

a=\frac{K}{4+9b}

8 0
4 years ago
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deff fn [24]
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3 years ago
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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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