Answer:
x=3, x=-2
Step-by-step explanation:
If this equation is
, then plug in each number. For this example, I'll only do the correct answers.


Hope this helps!
Answer:
13v ??
Step-by-step explanation:
What do you mean this sentence?
the time a pump takes to drain the pool varies inversely with the power in watts of the pump,
The meaning would be : if we have a power in watts greater the time to drag the pool will be less because the relation between power and time is inverse.
40 watts--------------5 hours)
100 watts------------ x
because the relation between power and time is inverse, we multiply directly.
40 watts(5 hours)=100 watts x
x=(200 watts hours) / 100 watts=2 hours.
Answer: the time would be 2 hours. (the new pump is faster)