Question

Roscoe rides his bike at least 10 miles but not more than 30 miles. He rides at an average rate of 10.5 miles per hour. The amount of time it takes for Roscoe to ride his bike m miles is represented by a function.



t(m)=m/10.5



What is the practical domain of the function?

All real numbers.

All multiples of 10 between 10 and 30, inclusive.

All integers from 10 to 30, inclusive.

All real numbers from 10 to 30, inclusive.

Answer 1

I believe my answer is D.

Answer 2

@zepdrix

Answer 3

its D

Answer 4

Definitely

Answer 5

no direct answer plz

Answer 6

Since it is only allowed to have from 10 to 30 miles then it would be D
But the question is messed up I can assure you.
The domain means x values and x intercept here are supposed to be time in hrs not miles.

Answer 7

the domain of Rosco is going to to be from 10 to 30, to match his least and greatest times. time an only be positive so his domain would have to be a real number, not an integer.