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erik [133]
3 years ago
11

A standard deck of cards contains 52 cards. thirteen of the cards are spades, and three of the spades are face cards. in all, th

e deck contains 12 face cards. when drawing one card at random from a shuffled deck, let a = {getting a face card} and b = {getting a spade}. what is the probability a or b happens? answer as a fraction in the format
Mathematics
1 answer:
Colt1911 [192]3 years ago
8 0
Total number of cards = 52
Total number of spades = 13
Total number of face cards that are not spades = 3 x 3 = 9

Total number of spades or face cards = 13 + 9 = 22

P(a or b) = 22/52 = 11/26

Answer: 11/26
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Janice is 7 years older than Tam. Complete the table, and then graph this situation.
qwelly [4]

Answer:

The table in the exercise can be completed with the next results:

  • x          y
  • 2         <u>9</u>
  • 4         <u>11</u>
  • 6         <u>13</u>
  • 8         <u>15</u>

Step-by-step explanation:

As in the exercise Janice is 7 years older than Tam, to obtain the result in the table, you must add 7 to each age in the column x, with this we can make the next formula:

  • y = x + 7

Remember that x is Tam's age, and y is Janice's age, so, you must replace the x variable in each case to obtain the result to y:

When x is 2:

  • y = 2 + 7
  • <u>y = 9</u>

When x is 4:

  • y = 4 + 7
  • <u>y = 11</u>

When x is 6:

  • y = 6 + 7
  • <u>y = 13</u>

When x is 8:

  • y = 8 + 7
  • <u>y = 15</u>

At last, <u>to obtain the graph you can use the formula made: y = x + 7</u>, and you'll obtain a graph like the attached picture, <em>where each time x obtain a unit, the y variable obtain a unit too maintaining the diference of 7</em>.

8 0
3 years ago
Write the equation of the line that passes through each pair of points (-2,0) (-1,-3)
Galina-37 [17]

Answer:

y = − 3 x − 6

Step-by-step explanation:

I hope this helps you

8 0
3 years ago
How many centimeters are in 8 feet, given that 1 in. 2.54 cm.​
Delicious77 [7]

Answer:

243.84

Step-by-step explanation:

We change feet to inches, and inches to cm.

1 ft = 12 in.

1 in. = 2.54 cm

8 ft * (12 in.)/(1 ft) * (2.54 cm)/(1 in.) = 243.84 cm

8 ft = 243.84 cm

3 0
3 years ago
Read 2 more answers
Show full workout <br>Change the following bases to decimal<br>a. 101011<br>b. 2373​
Lubov Fominskaja [6]
B I think if I’m wrong I sooooo sorry
4 0
3 years ago
I will give brainiest to whoever answers correctly !!
anyanavicka [17]

Answer:

11.95 - 7.95 = 4

4/7.95 = 0.50314465

0.50314465 X 100= 50.314465

50% rounded to 1dp

6 0
3 years ago
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