9. A local politician conducted his own study on the state of poverty in his community. Intuitively, he doubts the US census bureaus’ findings about poverty in that region of the country. His results were in the local newspaper. “As I traveled around our community and saw the rich opportunities here, I began to suspect that we are overcoming poverty. We have a knitting mill, a bus factory, and a furniture factory. The employees at these factories spend their money locally and support the rest of the economy. I now believe that the gap between the rich and the poor is starting to close. Programs that assist the poor can be reduced or eliminated. My assistant went door to door to determine household income. The study found that the average income is $60,000 per year; way up from the approximate $43,000 figure published by the US Census.”

168

step-by-step explanation:

i am pretty sure that the answer is 168

c

step-by-step explanation:

i think because what else can be a sample of every member

hello!

to begin with, we're given that on earth, a rock weighs 20 pounds, and while on jupiter, that same rock weighs 42 pounds. now, we're trying to find the weight of a rock that weighs 10.5 pounds on earth, on jupiter.

to solve this, first, set up a proportion, cross-multiply, and solve it algebraically.

setting up the proportion is the hardest and the most confusing part of the problem, but it's simple.

if on earth, the rock weighs 20 lbs, and on jupiter it weighs 42 lbs, our first part of our proportion is 20/42 lbs. the second part has to be equal to each other. this means that 10.5 has to be on the numerator of the fraction, and x, the value we're trying to find, has to be on the denominator. remember that the rock weighs 10.5 lbs on earth, and we're trying to find the weight of it on jupiter (which is x).

20/42 = 10.5/x

next, you would cross-multiply.

20x = 42(10.5)

20x = 441

now, solve it algebraically by using division.

x = 22.05 lbs

this can be rounded to 22.1 lbs.

therefore, the weight of the rock on jupiter is 22.1 lbs, the fourth choice.