Arelay team of 4 people run 3 miles. if each person runs the same distance, how many miles does each person run ?

Each person covers a distance of 0.75 miles

Step-by-step explanation:

According to the question, the relay race was ran by 4 individuals. And the 4 of them covers a total  distance of 3 miles. The question also enunciated that each person covers equal distance.

number of people than ran the race = 4 people

Total miles covered = 3 miles

If 4 people covers a distance of 3 miles

1 person will cover how many miles

cross multiply

number of miles covered by 1 person = 3/4

number of miles covered by 1 person = 0.75 miles

Since every of them covers equal distance, each of them covers a distance of 0.75 miles

Each person covers a distance of 0.75 miles

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

the answer is c)8

step-by-step explanaction: