I need the answer for math class.?

You have a total of nine ancient gold coins in your possession. However, one of the coins is counterfeit. It appears identical, but it is slightly heavier han the other 8 coins. With a beam balance, what is the smallest number of weighings required, that would guarantee an accurate identification of the counterfeit coin? Please show all the weighings using a tree diagram outlining each possible outcome.

Related posts:

  1. Can you answer this math question? You have eight coins and a balance scare. The coins look alike, but one is counterfeit and lighter then the other seven. Find the counterfeit coin using two weighings on...
  2. Can someone answer these math questions?! Test of Genius worksheet.? (1) Make this equation correct by changing the position of only one digit. 101-102=1 (2) Steven has 9 gold coins that are identical in appearance. However, one coin is counterfeit...
  3. Math riddle i think the answer is one but am not sure? ou have ten stacks of 10 half dollar coins. one entire stack is counterfeit but you do not know which one. you do know the weight of a genuine half...
  4. Please help me answer this math question? Clifton is planning a trip to the United States. He wants to take US 0 in spending money, If the current exchange rate is Can .00 = US {content}.632, how...
  5. Problem solving math question. Please show work and answer, as i have 9 more like it.? Calli has a pocket full of quarters. Calli saves all of the NH state coins which are one-third of the total quarters. Calli spends half of the remaining coins on...