algebra
posted by karon .
the number N of aluminum cans used each year varies directly as the number of people p using the cans. if 58 people us 23,432 cans in one year, how many cans are used in a cith which has a population of 1,956,000

N = kp
find k:
23432 = 58k
Now, having k,
N = 1956000k
Or, in other words,
N/1956000 = 23432/58