To solve this problem we will start by calculating time needed for each of them to fill the pool.
We have formula:
Volume = rate * time
Or
time = volume / rate
Wilma:
time = 9900 / 900
time = 11h
Betty:
time = 9900 / 500
time = 19.8h
Now we substract these two numbers:
time_difference = 19.8 - 11 = 8.8h
Betty needs 8.8 hours more than Wilma to fill the pool.
Answer:
Step-by-step explanation:
4
Answer:
f(x) = -5x
Step-by-step explanation:
Just add a - sign to reflect it over the x axis
espero y te ayude, cualquier cosa escríbeme
6 because 6x6=36
-------------------