When exchanging US Dollars (USD) for Philippine Peso (PHP) the number of Philippine Pesos received is directly proportional to the number of US Dollars to be ex

Question

When exchanging US Dollars (USD) for Philippine Peso (PHP) the number of Philippine Pesos received is directly proportional to the number of US Dollars to be exchanged. If 250 USD can be converted into 13,366.50 PHP.

Find the constant of proportionality k.

 

Using the k from above find the amout of PHP given that you have 600 USD to convert.

Answer 1

You're told to use a proportion, so

USD/PHP = 250/13,366.5 = 600/x

 

x is # of Philippine pesos corresponding to $600.  Solve for x. this method needs no "k"value.

 

k = 13,366.5/250 and it means how many PHP you get from a stated amount of USD.  Simply multiply # USD by k.