To find : the inequality to represent the number of minutes m that is spent on the phone last month and next month bill
Answer to Problem 29CCSR
The inequality to represent the number of minutes m that is spent on the phone last month is
The phone bill for the next month is $27.5
Explanation of Solution
Given information: We have a wireless phone plan that costs $25 per month. We must also pay $0.10 per minute for each minute over 500 min. Our bill was more than $30 last month and we use 525 min next month.
Calculation:
Let m be the number of minutes we spent on the phone last month. Since last month bill is more than $30,that is more than $25, so m must be greater than 500.
Now, last month phone bill =$
Now, last month bill is more than $30, so
Thus, the inequality to represent the number of minutes m that is spent on the phone last month is
Suppose, we will use 525 minutes next month, then the phone bill for the next month is
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