a student has $8 to spent on a phone call.the cost of the call is $0.34 for the first minute and $0.24 for each additional minute. how long can the student talk on the phone?
i think the answer is...
$8-$0.34=$7.66
$7.66/$0.24=31.9
so i guess its about 31 to 32 minutes
$0.24*31=$7.44
$7.44+$0.34=$7.78 that's to low
then i trie
$0.24*32=$7.68
$7.68+$0.32=$8.02
thats to high so i don't know please help me
31 minutes + 1 minute (first minute) = 32 minutes
To calculate how long the student can talk on the phone with $8, we need to take into account the cost of the first minute and the cost of each additional minute.
First, subtract the cost of the first minute ($0.34) from the total budget:
$8 - $0.34 = $7.66
Next, divide the remaining budget by the cost of each additional minute ($0.24):
$7.66 / $0.24 = 31.92
Since we cannot have a fractional number of minutes, we can round this number down to the nearest whole number to be conservative. Therefore, the student can talk for approximately 31 minutes.
To confirm this estimate, we can calculate the total cost of the call at this duration:
$0.24 * 31 = $7.44
$7.44 + $0.34 = $7.78
The total cost is within the student's budget, so the estimate of approximately 31 minutes is correct.