Question

Latanya made a 17-minute phone call from her hotel in France and was charged 17 euro. At the time, $1 was worth 0.82 euro. Find the cost per minute of the call in dollars?

Answer 1

$1.2 per minute

Explanation:

From the question, we can obtain the following:

• 17-minute phone call costs 17 euro, which can be written as
  `("17 euro")/("17 minute")`

• $1 was worth 0.82 euro. This can be written as: `("$1")/("0.82 euro")`

In order to find out the cost per minute of the call in dollars, we can arrange the two relationships in a manner that will cancel out the euros, giving dollars per minute:

`"cost of call"=(17 cancel("euro"))/("17 minute")xx("$1")/(0.82 cancel("euro"))=($1.2)/("minute")`