![Usman458](/avatars/11236.jpg)
Usman458
01.03.2021 •
Mathematics
Can someone please answer this?
Solved
Show answers
More tips
- S Sport How to Learn to Pull Up on Monkey Bars?...
- L Leisure and Entertainment Scrapbooking: What is it and Why is it Becoming More Popular?...
- H Horoscopes, Magic, Divination How to Cast a Love Spell on a Guy? Guide for Guys...
- F Family and Home How to Sew Curtain Tapes: Best Tips from Professionals...
- S Style and Beauty How are artificial nails removed?...
- S Style and Beauty How to Make Your Lips Fuller? Ideas and Tips for Beautiful Lips...
- F Food and Cooking The Disease That Haunted Abraham Lincoln...
- C Computers and Internet How to Get Rid of Windows Genuine Check?...
- H Health and Medicine How to perform artificial respiration?...
- S Style and Beauty Tricks and Tips: How to Get Rid of Freckles...
Answers on questions: Mathematics
- M Mathematics Mrs. Carlson put 5 teaspoons of sugar in two cups of coffee. How much sugar did Mrs. Carlson put in each cup of coffee?...
- M Mathematics Please answer this question...
- M Mathematics What fraction has a value that s equal to 3/4...
- M Mathematics Express 5.6 ×10 to the negative 7 power in standard notation...
- M Mathematics Which ordered pair is a solution of the inequality? (y 4x- 5) 3,4 2,1 3,0 1,1...
- M Mathematics Which of the following is a condition for a pure tessellation? a. the shapes must be polygons. b. more than one shape can be used. c. the shapes can overlap. d....
- M Mathematics Write the recursive function for this sequence. 8, 12, 18, 27...
- M Mathematics What is 5/16 in if the scale is 1 in=8ft?...
- M Mathematics Two problems here- 1) find the total cost to the nearest cent, $100 dinner; 20% gratuity 2) find the total cost to the nearest cent, 12300 car; 5% sales tax...
- M Mathematics If 2 straight lines intersect as shown, what is the value of z...
Ответ:
Answers:
Problem 7) 1/26Problem 8) 1/13Problem 9) 10/13Problem 10) 1/2Problem 11) 11/13Problem 12) 3/13Explanations:
Problem 7)
There are 2 red aces (hearts, diamonds) out of 52 cards total, so 2/52 = 1/26 is the probability of picking a red ace.
Problem 8)
There are 4 kings out of 52 cards total, so 4/52 = 1/13 are the odds of picking a king.
This is the same as say focusing on one suit (eg: clubs) and finding the probability of pulling out a king.
Problem 9)
There are 3 face cards per suit (Jack, Queen, King) so 3*4 = 12 face cards in all. The odds of picking a face card are 12/52 = 3/13. That makes 10/13 the odds of not picking a face card, since 3/13+10/13 = 1.
Problem 10)
The answer is 1/2 because half of the cards are red.
You could say 26/52 = 1/2 since there are 26 red cards out of 52 cards total.
Problem 11)
There are 4 copies of '2' and 4 copies of '3', so there are 4+4 = 8 cards we want to avoid. The probability of picking either of them is 8/52 = 2/13. The odds of not picking any of these cards is 11/13 (refer to problem 9).
Problem 12)
We have 4 copies each of '7', '8' and '9'
That gives 4*3 = 12 cards total we want to pick.
So 12/52 = 3/13 is the answer.