holasoykawaii10
26.07.2019 •
Mathematics
You have 12 coins, one of which is fake. the fake coin is indistinguishable from the rest except that it is heavier. can you determine which is the real coin heavier using a balance scale and only 3 weighings?
Solved
Show answers
More tips
- S Science and Technology Exploring Our Galaxy: How Many Planets are in the Milky Way?...
- W Work and Career Can Skill Alone Make You a Professional?...
- C Computers and Internet How to Top Up Your Skype Account Without Losing Money?...
- P Philosophy Unidentified Flying Object - What is the Nature of this Phenomenon?...
- F Family and Home Protect Your Home or Apartment from Pesky Ants...
- O Other What is a Disk Emulsifier and How Does it Work?...
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
- F Food and Cooking How to Get Reconfirmation of Registration?...
Answers on questions: Mathematics
- M Mathematics 2.7+(−3.1) plot the sum on the number line....
- M Mathematics (PLEASE HELPPP)How can relative frequency tables be more helpful than two-way frequency tables in making associations between variables?...
- M Mathematics Bobo was walking and a ball falls down from a 64 story building if the ball bounces half it s previous weight how high did the ball bounce on its 10th bounce? please answer...
- M Mathematics A submarine at a depth of -50 feet rises 10 feet. What is the depth of the submarine after it rises?...
- M Mathematics Find the measure of each acute angle. The measure of the top-left angle in the triangle is__º and the measure of the bottom-right angle is__º....
- M Mathematics What is the area of triangle ABC? С 12 60 60 A D B A 6V3 square units B. 18V3 square units C 36V3 square units D. 72 73 square units Please help with geometry...
- M Mathematics Find the value of x in the triangle shown below...
- M Mathematics Write an equivalent expression for the following:...
- M Mathematics Which equation can be used to solve for xxx in the following diagram? Choose 1 Choose 1 (Choice A) A 4x = 180 + 5x4x=180+5x4, x, equals, 180, plus, 5, x (Choice B) B 4x + 5x...
- M Mathematics What is the simplest form of the expression ? The correct answer is + Please write out work that I can use for my revisions. All other answers will be reported. Thank you!...
Ответ:
Get all 12 coins. put 6 in one pan and 6 in the other.
They will NOT balance. Get the 6 coins from the heavier pan.
2nd weighing
Separate these into 3 coins in one pan 3 in the other.
These will NOT balance. Get the 3 coins from the heavier pan.
3rd weighing
Separate these 3 coins by placing one coin in each pan.
Do they balance? If they do, the heavy coin is the one NOT being weighed.
If they don't balance, the heavy coin is in the heavy pan.
Ответ:
Ok, Now this is a weird question but you go for it.