one pump, let's call it A, fills the reservoir by 1/60 every hour. Now, B fills it by 1/80 every hour. C empties it by 1/90 every hour. All three are on, so now we combine them into one function: t(1/60 + 1/80 - 1/90) = 1, where t = the time it takes to fill it, and 1 is just our "reservoir finally filled" marker.
isolate t onto one side and we see t = 720/13 exactly, or approximately 55.38 hours. let me know if this is the wrong answer but I'm pretty sure it is correct!
105 degrees is the answer
I believe it is an imaginary number because imaginary numbers are square roots of negative numbers.
Answer:
I'm pretty sure it's 1 cup of water
You need 2 cups of pancake mix more than water so if you have 3 cups of pancake mix then you'd need 1 cup of water.
6 cups of mix = 4 cups of water
the cups of the mix is are 2 more cups than the water
3 cups of mix = 1 cup of water
I hope that helps and good luck! :)
