Question

Alex purchased a 6-hour calling card. He has used t minutes of access time. Wrote an algebraic expression to represent how many minutes he has remaining and identify the units for the expression.

Answer 1

T= Mins
1 hour = 60 mins 
60 x 6 = 360
360 - T = x 
X= How many minutes he has remaining

Answer 2

Answer: $360-t$ and the  units for the expression is minutes.

Step-by-step explanation:

Given : Alex purchased a 6-hour calling card.

Since , 1 hour = 60 minutes.

Then, $6\text{ hours}=6\times60=360\text{ minutes}$

He has used t minutes of access time.

Then , the algebraic expression to represent the number of minutes he has remaining :_

$360-t$

The units for the expression is minutes.