anonymous
  • anonymous
A computer is purhcased for 980 pounds.Its value will decrease by 4% per year.How much will it be worth in 2 years time.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
Can you tell me its value at the end of 1 year?
anonymous
  • anonymous
thats what i am struggling on @Mashy
anonymous
  • anonymous
@Michele_Laino

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Michele_Laino
  • Michele_Laino
after the first year the value of the computer is: \[\Large 980 - \left( {\frac{4}{{100}} \cdot 980} \right) =940.8\] and after the second year the value of the computer is: \[\Large 940.8 - \left( {\frac{4}{{100}} \cdot 940.8} \right) = ...?\]
anonymous
  • anonymous
the second year is 37.632 i think , I did 4/100 multiplied by 940.80
anonymous
  • anonymous
@Michele_Laino
anonymous
  • anonymous
am I also meant to subtract somewhere @Michele_Laino
Michele_Laino
  • Michele_Laino
now, you have to do this subtraction: \[\Large 970.8 - 37.63 = ...?\]
Michele_Laino
  • Michele_Laino
oops.. \[\Large 940.8 - 37.63 = ...?\]
anonymous
  • anonymous
903.17
Michele_Laino
  • Michele_Laino
yes!
anonymous
  • anonymous
is that the answer?
Michele_Laino
  • Michele_Laino
yes!
anonymous
  • anonymous
how did you get 4/100 multiplied by 980 as 940.8 @Michele_Laino
anonymous
  • anonymous
i got 39.2 @Michele_Laino
Michele_Laino
  • Michele_Laino
since we have to do this subtraction: \[\Large 980 - \left( {\frac{4}{{100}} \cdot 980} \right) = 980 - 39.2 = 940.8\]
anonymous
  • anonymous
why do we have to do a subtraction ?
anonymous
  • anonymous
@Michele_Laino
Michele_Laino
  • Michele_Laino
because the value of the computer is decreasing from its original value
anonymous
  • anonymous
why did we have to do 4 percent of 940.8 as well as 4 percent of 980 @Michele_Laino
anonymous
  • anonymous
thanks for the reply for my first query
Michele_Laino
  • Michele_Laino
since at the end of one year, the value of the computer is decreased by 4% from its starting value. Now the starting value at the first year is $980.00, whereas the starting value at the beginning of the second year is $940.80
Michele_Laino
  • Michele_Laino
:)
anonymous
  • anonymous
thanks
Michele_Laino
  • Michele_Laino
:)

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