you buy a cell phone that gives1000 minutes of calling for $20 per month. you use 100 minutes in the first month, your per minute cost for that month is what?

Question

TRYING TO UNDERSTAND UNIT AND RATES WORD PROBLEMS

Answer 1

Your cost is $20 for the month...that didn't change. You used 100 minutes. Simply divide the total amount by the number of units, which is minutes used in this case. $20 ÷ 100 = $0.20  This means you paid 20 cents per minute used in the first month. The number of minutes you are allowed is not relevant to the question being asked.