Joe swam at the rate of 4.5 miles per hour. joseph swam at the rate of 1/12 of a mile per minute. who was swimming faster? by how many miles per hour faster?

It is given Joe swam at the rate of 4.5 miles per hour. Joseph swam at the rate of of a mile per minute.

Joseph swam mile in one minute .

60 minutes = 1 hour.

Number of miles Joseph swam in 1 hour= miles

Joseph swam 5 miles in one hour .Or Joseph swam at the rate of 5 miles per hour.

Joseph was swimming faster then Joe by 5-4.5 = 0.5 miles per hour.

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !