Each runners time would be an average of 18.1
72.4/4=18.1
Answer:
The answer would be 21.99
Hope this helps :)
Step-by-step explanation:
Answer:
Step-by-step explanation:
Check attachment for solution
For this case we have the following system of equations:
Equating both equations we have:
We must find the solutions, for this we factor. We look for two numbers that, when multiplied, result in 4 and when added, result in 5. These numbers are 4 and 1:
Then, the factorized equation is of the form:
Thus, the solutions are:
We look for solutions for the variable "y":
Thus, the system solutions are given by:
ANswer:
Answer:
7
Step-by-step explanation:
This is a 7th degree polynomial. There should be 7 roots. Note how degree of poly = number of roots.