MAT 222 Week 1

Solving Proportions

MAT 222 Intermediate Algebra

Solving Proportions

Problem 1

Bear population. To estimate the size of the bear population on the Keweenaw Peninsula, conservationists captured, tagged, and released 50 bears. One year later, a random sample of 100 bears included only 2 tagged bears. What is the conservationist's estimate of the size of the bear population?

I think using a simple ratio equation would work here,

let b bear population

cross multiply

2b 50*100

2b5000 divide 2 by 5000

5000 b

2

b2500 answer

Problem 2

For the second problem in this assignment I am asked to solve this equation for y. The first thing I notice is that it is a single fraction (ratio) on both sides of the equal sign so basically it is a proportion which can be solved by cross...