The estimated cost of a Hershey Bar is given by the formula, C = (5/4)t + 10, where C (cost in cents) is in terms of t (number of years since 1970). (Remember: 1970 means

t = 0.) Assume the cost can change once at the beginning of the year.

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this is calculated as shown below

c=(5/4)x44 + 10

=65 cents

I would like to know what does the year 2000 mean t=

the year 2000 t=(5/4) x (2000-1970) + 10

=47.5 cents

why did yo subtract 2000-1970?

i subtracted in order to get the time period t, since 1970, because we have been given the final year to be 2000

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