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andrew11 [14]
3 years ago
13

Suppose you are going to draw two cards from a standard deck without replacement. What is the probability that the first card is

an Ace and the second card is a Jack?
Mathematics
1 answer:
Pavel [41]3 years ago
5 0

Answer:

4/663

Step-by-step explanation:

1/13 = probability of ace (as 1st card)

4/51 = probability of jack (as 2nd card) -->

4/663

You might be interested in
Charles buys 30 packs of pens.
kompoz [17]

Answer:

£159

Step-by-step explanation:

Charles buys 30 packs of pens.

There are 15 pens in each pack.

Each pack costs £2.80.

Charles sells each pen for 90p but he only manages to sell 3/5 of the pens.

How much profit did he make?

Step 1

Charles buys 30 packs of pens.

There are 15 pens in each pack.

The total number of pens in the pack is

30 packs × 15 pens

= 450 pens

Each pack costs £2.80

Hence:

1 pack = £2.80

30 packs = x

Cross Multiply

x = 30 × £2.80

x = £84

Step 2

The total number of pens in the pack is

30 packs × 15 pens

= 450 pens

He only manages to sell 3/5 of the pens

The amount of pens Charlie sells =

3/5 × 450 pens

= 270 pens

Charles sells each pen for 90p

100p = £1

90p = x

Cross Multiply

100 × x = 90 × £1

x = 90/100

x = £0.9

The amount he sells each pen =

1 pen = £0.9

270 pens = x

Cross Multiply

x = 270 pens × £0.9

x = £243

Step 3

The profit that he made is calculated as:

£243 - £84

= £159

8 0
3 years ago
Use a number line to solve.<br> 0.03 -0.92<br> a. -0.89<br> b. -0.95<br> C. 0.95<br> d. 0.89
AfilCa [17]

Answer:

a. -0.89

Step-by-step explanation:

The easiest way to solve this is that 0.03 - 0.92 is also the same thing as -0.92 + 0.03, your answer should be -0.89 which you are adding up 0.03.

5 0
3 years ago
Find the value of expression when b=9, c=5, d=1/2; expression is 1/2d + c^3 - b​
Step2247 [10]

Answer:

115 3/4

Step-by-step explanation:

\frac{1}{2} * \frac{1}{2} Because d=1/2. 1/2*1/2=1/4

C=5 so, C^3=5x5x5

C=125

Next, b=9

Then, you put everything together.

1/4+125-9=125 1/4-9

115 3/4

115 3/4+9 1/4

7 0
3 years ago
What is the volume of the box if it is scaled down by a factor of 1/10?<br> V= 308 35/64
anastassius [24]

Answer:

explanation will answer.

Step-by-step explanation:

To convert this fraction to a decimal, just divide the numerator (35) by the denominator (64). So, 35 / 64 = 35 ÷ 64 = 0.546875. Approximated Values: 35 / 64 = 0.5 rounded to 1 significant figure. 35 / 64 = 0.55 rounded to 2 significant figures. 35 / 64 = 0.547 rounded to 3 significant figures.

7 0
2 years ago
Read 2 more answers
What comes next in the following pattern: 0,1, -2, 3, -4,5, -6, 7,-8, 9, -10, _
timurjin [86]

Answer:

11, -12, 13, -14

Step-by-step explanation:

every even number is a negative

7 0
4 years ago
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