Question

A person makes an overseas phone call. The telephone company charges 104 cents for the first minute and then119 cents for each minute thereafter. Because it's an overseas phone call, there is also a 95 cent service charge. Ifthe phone call cost $25.79, how many minutes did this person talk?The person talked forminutes.

Answer 1

From the question we got the following:

The telephone company charges 104 cents for the first minute.

Then 119 cents for each minute thereafter.

Since its an oversea call, there is 95 cents service charge.

If the phone call cost $25.79, how many minutes did the person talk.

recall that:

$1 = 100 cents

$25.79 will be 25.79 * 100

= 2579 cents.

So to get the minutes the person caled we have:

104 + 119(m - 1) + 95 = 2579

104 + 119m - 119 + 95 = 2579

119m + 80 = 2579

subtract 80 from both sides:

119m = 2579 - 80

119m = 2499

divide both sides by 119

m = 2499/119

m = 21

Therefore, the person talked for 21 minutes.