20 is the answer:
The shortest collection time in the after would be the minimum. This is 25.
The shortest collection time for before would also be the minimum. This is 45.
45 - 25 = 20
Recall the Pythagorean identity,
Then we can rewrite the equation as
Factorize the left side.
Then we have
Solve for . We get two families of solutions:
and
(where is any integer)
Answer:
x=7/3
Step-by-step explanation:
convert 2 1/3 to an improper fraction
Answer:
pingus
Step-by-step explanation: