![hgghukghj1814](/avatars/8796.jpg)
hgghukghj1814
28.07.2019 •
Mathematics
A) in a group of 2,000 people, must at least 5 have the same birthday? why? b.show that if seven integers are selected from the first 10 positive integers there must be at least two pairs of these integers with the sum 11.
Solved
Show answers
More tips
- F Food and Cooking 10 Reasons Why You Should Avoid Giving Re-Gifts: An Informative Guide...
- F Family and Home How to Sew Curtain Tapes: Best Tips from Professionals...
- A Animals and plants How to Grow Lime from a Seed: Simple Tips and Interesting Facts...
- C Computers and Internet How to Create a Folder on Your iPhone?...
- G Goods and services How to sew a ribbon: Tips for beginners...
- F Food and Cooking How to Make Mayonnaise at Home? Secrets of Homemade Mayonnaise...
- C Computers and Internet Which Phone is Best for Internet Surfing?...
- F Food and Cooking Everything You Need to Know About Pasta...
- C Computers and Internet How to Choose a Monitor?...
- H Horoscopes, Magic, Divination Where Did Tarot Cards Come From?...
Answers on questions: Mathematics
- M Mathematics Karen bar 8 pounds of fruit to make three equals sizes fruit Salads. What is the weight of each fruit salad...
- M Mathematics $3500 deposit earnings 6.75% compounded monthly, after 6 years....
- M Mathematics Sam and Jen own a towing service in Evansville. Last week, they answered a total of 174 emergency road calls. If Sam answered 94 more calls than Jen did, write and solve...
- M Mathematics 3. Two Distances. The distance between the two towers is 38 miles. From the western cell tower a phone is 21 miles away, and from the eastern cell tower the same phone is...
- M Mathematics Complete the number sentence to solve. Enter the answer in simplest form. Three students share 4 granola bars equally. How many granola bars does each student get? 4+ 3...
- M Mathematics 3. CDEF is a parallelogram. Find m2C and mZD. C (4x + 28)° (17x + 5)º F ton...
- M Mathematics 90 centimeters tall when 2 years old 100 centimeters tall when 5 do the number of centimeters and the number of years have a proportional relationship?...
- M Mathematics What is the result when 3x^4-5x^3+7x^2+3x-8 is divided by x-1x−1?...
- M Mathematics Hi hi!! please help, it’s 8th grade algebra Solve the following system of equations. You may use any method you feel comfortable with! Give answer in (x, y) form: y = 2x...
- M Mathematics Pis the point (-4,4)Qis the point (1,-5)Find the gradient of PQ.PLEASE HELP...
Ответ:
Given 365 people, two at least must have the same birthday (obvious).
Now multiply the above number by 5 we get : 1825.
Since
b)
Think of the number 11 and how many manner we can sum to 11:
1+10=11
2+9=11
3+8=11
4+7=11
5+6=11
So there is five ways. Suppose we draw one number. There is no way to draw 7 numbers without obtaining a couple forming 11.
Ответ:
so to find out how much 10 cakes cost you simply do this :
40 p * 10 = £4
hope this helps you ! =')