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Submitted By caboun6828

Words 340

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Words 340

Pages 2

50X=2100 This is the proportion set up and ready to solve. I will cross multiply setting the extremes equal to the means.

10050=2x 100and 50 are the extremes, while X and 2 are the means.

50002=2x2 Divide both sides by 2

X = 2500 The bear population on the Keweenaw Peninsula is around 2500 bears. The second problem for assignment one week one I am asked to solve the below equation for y. The first thing I notice is that a single fraction (ratio) on both sides of the equal sign so basically it is a proportion which can be solved by cross multiplying the extremes and the means. y-1x+3=-34 Is the equation I am asked to solve.

3y-1=-3x-4 The result of the cross multiplying.

3y-3=-3x+12 Distribute 3 on the left side and -3 on the right.

3y-3+3=-3x+12+3 Subtract 3 from both sides.

3y=-3x+15

3y3=-3x3+153 Divide both sides by 3 y=-x+5 This is a linear equation in the form of y=mx+b. This equation is in its simplest form. I like how we can take just a couple of numbers from a word equation and put it in an order that will help us solve many estimates we may come across.

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