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Mathematics 23 Online
OpenStudy (anonymous):

amt of waste produced in tons per week is W=3.75e^-0.008t, t in weeks, waste removal is $15/ton. how much does the company pay for waste removal during year 2005?

OpenStudy (anonymous):

find the tons produced in 2005, then times that by $15

OpenStudy (anonymous):

52 weeks in a year so put that for t. u should get W w = amount of waste in tons W times 15 gives u the fee

OpenStudy (anonymous):

i get 2.47 tons x $15 = $37.11. the back of the book says its supposed to be $2392.87?

OpenStudy (anonymous):

do they give anything else besides what u gave in the problem

OpenStudy (anonymous):

nope thats it. we are learning the definite integral?

OpenStudy (anonymous):

if u work backwords, for that to be the answer, t would have to be equal 468.80534

OpenStudy (anonymous):

which is basically 9 years. do u have years right

OpenStudy (anonymous):

i don't understand wut the years have to do with it? i just plugged the 52 weeks for t then times by 15

OpenStudy (anonymous):

for answer to be 2398, t has to equal 468 weeks = 9 years. what time period do they give

OpenStudy (anonymous):

they only give t is in weeks since jan. 1, 2005 and want to know how much the company pays for waste removal during the year 2005

OpenStudy (anonymous):

sorry if everything u say is true, then the answer should be 37

OpenStudy (anonymous):

ok thanks. then i hope the book is wrong. thanks for your help.

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