# Math homework help! I am extremely lost…?

I have two problems that I CANNOT figure out. Here they are…

1. On Monday, January 4, 2010, one Euro was worth .4408 and one Yuan (China) was worth {content}.1465. What was the value of one Yuan in Euros on Monday, January 4, 2010?

2. You are considering buying 15 silver coins that look alike, but you have been told that one of the coins is a lightweight counterfeit. How can you determine the lightweight coin in a maximum of three weighings on a balance scale?

I keep trying different conversions, but I can’t even get past the second step. The second question has my completely baffled because at first I wanted to separate them into 3 piles then weight them, but then I’d be out of weighings…

Related posts:

1. Math Homework-problem solving? I have some math problem solving questions here, any help is appreciated. 1. What is the smallest number that must be added to 96 to give a number which can...
2. Math homework please help? Miriam is planning a trip to new england to spend a weekend on the beach. She needs some Americna currency. She receives US{content}.75 in exchange for one Canadian dollar. Consider...
3. math question? You have 45 silver coins but one of them is a lighter weight counterfeit. How can you determin the counterfeit coin in a maximum of 3 weighings on a balance...
4. Math problem? Five coins look the same, but one is a counterfeit coin with a different weight than each of the four genuine coins. Using a balance scale, what is the least...
5. 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...