ratios

posted by .

Martha is flying to England for a visit. She intends to exchange her U.S. dollars for English pounds. The exchange rate allows 60 pounds for every 100 U.S. dollars. How many pounds will she get if she exchanges \$450 U.S. dollars for pounds?

60:x = 100:450 ( this is how I was trying to work this out but again, I don't the answer in my book ).

Help greatly appreciated.

Thanks

• ratios -

Your ratio is wrong. Put the pounds on top and the dollars on the bottom. Or you could reverse that.

60/100 = x/450

Cross multiply and solve for x.

100x = 27,000
x = 270 pounds

• ratios -

The book I am learning from gives an answer of 750 pounds. I am working out of Mathematics Made Simple fifth edition. It doesn't show the work. It shows me one way of doing certain problems and then changes. frusterating? Thank you for your help.

• ratios -

Either you've copied the problem wrong, or your book's answer is wrong.

The problem states that you for 60 pounds, you pay \$100. Therefore you'll get a smaller number of pounds than dollars.

Look at it this way.

Pay \$100; get 60 pounds
Pay \$200; get 120 pounds
Pay \$300; get 180 pounds
Pay \$400; get 220 pounds

Similar Questions

1. math

During the past few years Great Britian's pund has been worth between \$1 and \$2 in US currency. Suppose the rate of exchange is \$1.50 for each pund. a. What is the value in dollars for 5 punds?
2. math

Can someone help me with the equation and I will doing the answer During the past few years Great Britian's pund has been worth between \$1 and \$2 in US currency. Suppose the rate of exchange is \$1.50 for each pund. a. What is the value …
3. MacroEconomics

I have the first 4 parts but fall short on the last 2 answers: For each of the following situations, indicate the direction of the shift in the supply curve or the demand curve for dollars, the factor causing the change, and the resulting …
4. econ

True of False? E=exchange rate Suppose E \$/euros = 3/2 and E \$/pounds = 2, and there is no trade friction, the no arbitrage condition implies that E pounds/euros = 2
5. math

The exchange rate of U.S. dollars to British pound's is .63 you have \$4000 to convert to British pounds. How many British pounds will you receive?
6. Math

Many nations compare the value of their currency to the US dollar. On a day early in 2009, \$1 CDN (1 Canadian dollar) was worth \$0.8290 USD (US dollar). This is known as an exchange rate. On the same date \$1 USD could be used to buy …
7. Math

Many nations compare the value of their currency to the US dollar. On a day early in 2009, \$1 CDN (1 Canadian dollar) was worth \$0.8290 USD (US dollar). This is known as an exchange rate. On the same date \$1 USD could be used to buy …
8. Math

Many nations compare the value of their currency to the US dollar. On a day early in 2009, \$1 CDN (1 Canadian dollar) was worth \$0.8290 USD (US dollar). This is known as an exchange rate. On the same date \$1 USD could be used to buy …
9. math

Suppose you are exchanging currency in the London airport. The currency exchange service there only makes transactions in which one of the two currencies is British pounds, but you want to exchange dollars for Euros. Thus you first …
10. MATH

Suppose you are exchanging currency in the London airport. The currency exchange service there only makes transactions in which one of the two currencies is British pounds, but you want to exchange dollars for Euros. Thus you first …

More Similar Questions

Post a New Question