Show how to use unit analysis to get the correct units when you convert dog

label Algebra
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To convert dog years to human years, you count 10.5 dog years per human year for the first two human years and then 4 dog years per human year for each human year thereafter.

a.Show how to use unit analysis to get the correct units when you convert dog years to human years.

b.Write and simplify an algebraic expression for converting dog years to human years when the number of human years is 2 or more.Define what the variable represents. 

Oct 13th, 2015

Thank you for the opportunity to help you with your question!

The units:

10.5 dog/human for years 0-2

4 dog/human for human years 3+

a) x human years * 10.5 dog/human = 10.5x dog years

Or if x>2,

b) 2*10.5 = 21 dog + x-2 human * 4 dog/human where x = human years greater than 2.


Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 13th, 2015

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Oct 13th, 2015
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