Question

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

Answer 1

The algebraic expression can be t=6h-m

Answer 2

Answer:

$R = 360-t$ minutes

Step-by-step explanation:

Alex purchased a 6-hour calling card.

1 hour = 60 minutes

6 hour = $60 \times 6 = 360 minutes$

He used t minutes of access time.

let the remaining time be R

So, Remaining time = $R = 360-t$ minutes

The units for the expression is minutes.

Hence an algebraic expression to represent how many minutes he has remaining is  $R = 360-t$ minutes