Ask question

Ask question

All categories

3 years ago

15

I’m not sure how to do this can anyone help!!!!!

1 answer:

satela [25.4K]3 years ago

7 0

9514 1404 393

Answer:

22/44

Step-by-step explanation:

The probability of black is the ratio of black cards to all cards. If the Ace and 2 are removed from each suit, there will be 11 of the 13 cards remaining. 2 suits are black, for a total of 2×11 = 22 black cards. Of course there are 4 suits altogether, for a total of 4×11 = 44 total cards. Then you have ...

P(black) = (black cards)/(total cards)

P(black) = 22/44

_____

You are expected to be familiar with the fact that a deck of 52 playing cards consists of 4 suits: diamonds, clubs, hearts, spades. Each suit has 13 cards, identified as Ace, 2, 3, ..., 10, Jack, Queen, King. The clubs and spades are black; the diamonds and hearts are red.

You might be interested in

Two cards are drawn at random from a standard deck without replacement. Which of the following

Pachacha [2.7K]

Answer: .15% (point fifteen percent)

:)

Step-by-step explanation:

8 0

3 years ago

Need help with a math question

ludmilkaskok [199]

Answer:

There are 10 possible ways the student can schedule the three classes

Step-by-step explanation:

The college student is choosing 3 classes to take during the first, second, and third semester from 5 electives.

Therefore, the student is choosing 3 items from a total of 5 and the order is not of key concern here. This is thus a combination problem;

5C3 = 10

read as 5 choose 3

The above mathematical operation can be performed using any modern calculator.

7 0

3 years ago

If the cost of 8 pizzas is $74, what is the cost per pizza? Use a proportion to solve.

Angelina_Jolie [31]

Answer:

9.25

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Represent each of the following expressions as the power of a<br> number a:<br> a^3•a^-3/a^3

AnnZ [28]

You do this and then you do that

7 0

3 years ago

Answer the following questions

Alex787 [66]

Answer:

1. $2 \frac{2}{7}$

2. $2 \frac{1}{3}$

3. $\frac{5}{12}$

4. $8 \frac{2}{3}$

5. $\frac{2}{3}$

Step-by-step explanation:

<h2> $1. \: \: 2 \frac{2}{3} \div 1 \frac{1}{6}$ </h2>

$\frac{8}{3} \div \frac{7}{6}$

$\frac{8}{3} \times \frac{6}{7}$

$8( \frac{2}{7} )$

$\frac{8 \times 2}{7}$

$\frac{16}{7}$

$2 \frac{2}{7}$

<h2> $2. \: \: 6 \frac{2}{3} \div 2 \frac{6}{7}$ </h2>

$\frac{20}{3} \div \frac{20}{7}$

$\frac{20}{3} \times \frac{7}{20}$

$\frac{1}{3} \times 7$

$\frac{7}{3}$

$2 \frac{1}{3}$

<h2> $3. \: \: 4 \frac{1}{6} \div 10$ </h2>

$\frac{25}{6} \div \frac{10}{1}$

$\frac{25}{6} \times \frac{1}{10}$

$\frac{5}{6} \times \frac{1}{2}$

$\frac{5}{6 \times 2}$

$\frac{5}{12}$

<h2> $4. \: \: 6 \frac{1}{2} \div \frac{3}{4}$ </h2>

$\frac{13}{2} \div \frac{3}{4}$

$\frac{13}{2} \times \frac{4}{3}$

$13( \frac{2}{3} )$

$\frac{13 \times 2}{3}$

$\frac{26}{3}$

$8 \frac{2}{3}$

<h2> $5. \: \: 3 \frac{3}{4} \div 5 \frac{5}{8}$ </h2>

$\frac{15}{4} \div \frac{45}{8}$

$\frac{15}{4} \times \frac{8}{45}$

$\frac{1}{4} \times \frac{8}{3}$

$\frac{2}{3}$

<h3>Hope it is helpful...</h3>

8 0

3 years ago