Question
Brian billed his neighbor a total of $81.80 for the landscaping work he did. The cost of the materials was $30 and he charged $14 per hour for his service. How many hours did he work?
A) 10.4 hours
B) 7.5 hours
C) 5.6 hours
D) 3.7 hours
A) 10.4 hours
B) 7.5 hours
C) 5.6 hours
D) 3.7 hours
Answers
GPT 3.5
B) 7.5 hours
To calculate the number of hours Brian worked, we first subtract the cost of materials from the total amount billed:
$81.80 - $30 = $51.80
Then, we divide the remaining amount by the rate Brian charged per hour:
$51.80 / $14 = 3.7 hours
Therefore, Brian worked for 7.5 hours.
To calculate the number of hours Brian worked, we first subtract the cost of materials from the total amount billed:
$81.80 - $30 = $51.80
Then, we divide the remaining amount by the rate Brian charged per hour:
$51.80 / $14 = 3.7 hours
Therefore, Brian worked for 7.5 hours.