(1 point) The cost of a Frigbox refrigerator is $825, and depreciates $60 each y
ID: 3034475 • Letter: #
Question
(1 point) The cost of a Frigbox refrigerator is $825, and depreciates $60 each year. The cost of an Arctic Air refrigerator is $1185 , and it depreciates $150 per year.
(a) Find an equation for the value of the Frigbox, FF, ttyears after it is purchased.
F(t)=F(t)=
(b) Find an equation for the value of the Arctic Air, AA, tt years after it is purchased.
A(t)=A(t)=
(c) If a Frigbox and an Arctic Air are bought at the same time, when do the two refrigerators have equal value?
In years.
Note: You can earn partial credit on this problem.
Explanation / Answer
a) Find an equation for the value of the Frigbox,
F(t) = 825 - 60t
b) Find an equation for the value of the Arctic Air
A(t) = 1185 - 150t
c) A(t) = F(t)
825 - 60t = 1185 - 150t
90t = 360
t = 4 years
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