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Mathematics 13 Online
OpenStudy (danielbarriosr1):

Please help

OpenStudy (danielbarriosr1):

Nick bought a pet Lizard and enjoys the responsibility of taking care of it. Every week, the lizard will eat 60 grasshoppers. Nick pays $1 for 20 grasshoppers. How many dollars will a year's worth of food cost for the lizard?

OpenStudy (mathmale):

Buenos dias, amigo Daniel! Let's break this problem up into shorter steps. First, how many weeks are there in a year? If the lizard eats 60 grasshoppers per week, how many would it eat in one year?

OpenStudy (anonymous):

52.1775 weeks are in a year

OpenStudy (danielbarriosr1):

Hola. 3120 grasshoppers in a year

OpenStudy (anonymous):

yep

OpenStudy (mathmale):

and our job is to determine how much Nick is going to have to spend on grasshoppers for his hungry lizard in one year. It often helps to consider units of measurement when you're trying to figure out a rate (such as cost per year). What would happen to the units of measurement if we were to divide 3120 grasshoppers/year by $1/20 grasshoppers? Play with that. Does the result sound correct? If not, what math operation would you use to find the annual cost of the grasshoppers?

OpenStudy (danielbarriosr1):

$156

OpenStudy (mathmale):

That looks reasonable to me. I'd use the units of measurement $156/year, as that's what the question asks. Are you comfortable with this solution, or are there any aspects that we need to discuss further?

OpenStudy (danielbarriosr1):

I'm Ok thank you

OpenStudy (mathmale):

Cool! Hope to work with you again soon. Bye for now!

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