SOLUTION: a computer company is purchased $1700. each year , its value is 75% of its value the year before. after how many years will the laptop computer be worth $100 or less?
Algebra.Com
Question 671789: a computer company is purchased $1700. each year , its value is 75% of its value the year before. after how many years will the laptop computer be worth $100 or less?
Answer by fion23(5) (Show Source): You can put this solution on YOUR website!
1700(1-r)^1=1700*0.75
1700(1-r)=1275
(1-r)=1275/1700
-r=0.75-1
r=0.25
1700(1-0.25)^t=100
0.75^t=100/1700
t log0.75 = log(1/17)
t=(log(1/17))/(log0.75)
t=9.848 years
RELATED QUESTIONS
A laptop computer is purchased for $1200 . Each year, its value is 70% of its value the... (answered by rfer,josmiceli,MathTherapy)
A laptop computer is purchased for $5000 . Each year, its value is 70% of its value the... (answered by Boreal)
A laptop computer is purchased for . Each year, its value is of its value the year... (answered by Alan3354,ikleyn)
A laptop computer is purchased for $2600. Each year, its value is 80% of its value the... (answered by Alan3354)
A laptop is purchased for 4700. Each year, its value is 70% of its value the year before. (answered by Fombitz)
A laptop is purchased for $4800. Each year its value is 75% of its value the year before. (answered by solver91311)
A laptop computer is purchased for $2700. Each year its value decreases by 20%. After... (answered by LinnW)
a computer is purchased for $3200.00. Its value each year is about 79% of the value the... (answered by checkley71,josmiceli)
A computer is purchased for $3200. Its value each year is about 79% of the value the... (answered by rfer)