Problema Solution
A color photocopier is purchased for $4800. its value each year is about 70% of its value in the preceding year. Its value after t years is given by the exponential function V(t)=4800(0.07)^t.
a) Find the salvage value of the copier after 3 yr.
b) After what amount of time will the salvage value be $1200.
c) After what amount of time will the salvage be half the original value?
Answer provided by our tutors
a) v(3)=4800*0.07*3=1008
b)1200=4800*0.07*t
t is approximately 3.57 years
c) 4800/2 = 4800*0.07*t
t= 1/0.14 =7.1428
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