While driving on a 500-mile trip, Mr. Smith averages 60 miles per hour for the first t hours. In terms of t, where t<8, how many miles remained to be traveled?
A) 60t-500
B) 500-60t
C) 300,000
D) 500-60/t
E) 500/60t
I'll be glad to check your answer.
D? I don’t know if this is correct... I filled in the variables
D=R times T
500=60/T times x
answer
To find out how many miles remained to be traveled, we need to determine the distance he has already covered. Mr. Smith averages 60 miles per hour for the first t hours. So, the distance covered in t hours can be calculated by multiplying the average speed (60 miles per hour) by the time duration (t hours), which gives us 60t miles.
Since the total trip is 500 miles, the number of miles remaining to be traveled can be found by subtracting the distance covered (60t miles) from the total trip distance (500 miles). Therefore, the expression for the miles remaining is:
500 - 60t
Hence, the correct option is B) 500-60t.