In the City of The Colony (population 39,458), they have a wastewater treatment plant that currently processes an average of 2.78 million gallons of water per day. Given this information, what is the average amount of wastewater generated per capita per day

70.45 gallons per capita per day

Step-by-step explanation:

Per capita means for each person.  so for instance if each person int he city generated one gallon per day it would be 39,458 per day.  

In other words we want to know how much each person would have to produce per day to make 2.78 million per day.  So the idea is 39458 has to be multiplied by something to get 2.78 milion.  There you just use algebra.

39458x = 2,780,000

x = 2780000/39458

x = 70.45

So each person on average uses 70.45 gallons per day.  You can check too by multiplying this by 39458 representing each person.  

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500