please help me with this really hard word problem?

Suppose a bag contains at total of 5280 quarters; some of which are Canadian and some of which are US. The Canadian dollar is worth 87 US cents. An ounce of gold is worth US$ 989.

a) If the number of US coins the bag contains is N, write an algebraic expression for how many US dollars they are worth. [Hint: how much is one quarter worth? Two quarters? N quarters?]

b) Write an expression for how many ounces of gold the US coins will buy. [Hint: how do you determine how much of something you can get for a given amount of money based on its price?]

c) Write an expression in terms of N (the number of US coins) for the number of Canadian coins in the bag. [Hint: the whole is the sum of the parts. What number is given as the whole?]

d) Give an expression (in terms of N, the number of US coins) for how many US dollars the Canadian coins are worth. [Hint: how many Canadian dollars are the Canadian coins worth and how much in US dollars is a Canadian dol. worth

Related posts:

  1. please help me with this really hard word problem? Suppose a bag contains at total of 5280 quarters; some of which are Canadian and some of which are US. The Canadian dollar is worth 87 US cents. An ounce...
  2. How do I solve this word problem? Suppose a bag contains at total of 5280 quarters; some of which are Canadian and some of which are US. The Canadian dollar is worth 87 US cents. An ounce...
  3. Need help with math word problems.? I have some math word problems here, need some help. 1. What is the smallest number that must be added to 96 to give a number which can be divided...
  4. Word problems? In 2001, the Royal Canadian Mint issued an 18-K gold hologram coin to commemorate the Chinese Year of the Snake. The coin’s face value is $150 and its production is...
  5. Word Problems? 1) Steven has 9 gold coins that are identical in appearance. However, one coin is counterfeit and weighs slighlt less than the others. Using a balance scale, how can he...