Question

the exchange rate from pounds to dollars is £1=$1.85.
Kate changes $320 to pounds. how many pounds should she receive?

work out the exchange rate from dollars to pounds.
$1=£____

Answer 1

if 1 pound is 1.85 dollars, how many pounds in 320 dollars? cross multiply

Answer 2

thanks so much im really bad at math ;)

Answer 3

can you work out the other one too?
work out the exchange rate from dollars to pounds.
$1=£____
?

Answer 4

no haha im just confusing myself

Answer 5

okay if 1 pound is 2 dollars, what is 1 dollar?

Answer 6

50p?

Answer 7

good, so 1 dollar is one half of a pound. or 1 dollar is 1/2 pound, correct?
similarly if 1 pound is 1.85 dollars, then one dollar is 1/1.85 ths of a pound
or 1 dollar = 1/1.85 pound

Answer 8

in other words, 2 dollars make up one pound, so 1 dollar is half a pound.
similarly 1.85 dollars make up a pound, so 1 dollar is 1/1.85 pounds

Answer 9

right okay so to 2.d.p would that jsut be 1/1.85?

Answer 10

2.d.p?