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anonymous

  • one year ago

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.

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  1. anonymous
    • one year ago
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    Can you tell me its value at the end of 1 year?

  2. anonymous
    • one year ago
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    thats what i am struggling on @Mashy

  3. anonymous
    • one year ago
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    @Michele_Laino

  4. Michele_Laino
    • one year ago
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    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: \[\Large 940.8 - \left( {\frac{4}{{100}} \cdot 940.8} \right) = ...?\]

  5. anonymous
    • one year ago
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    the second year is 37.632 i think , I did 4/100 multiplied by 940.80

  6. anonymous
    • one year ago
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    @Michele_Laino

  7. anonymous
    • one year ago
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    am I also meant to subtract somewhere @Michele_Laino

  8. Michele_Laino
    • one year ago
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    now, you have to do this subtraction: \[\Large 970.8 - 37.63 = ...?\]

  9. Michele_Laino
    • one year ago
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    oops.. \[\Large 940.8 - 37.63 = ...?\]

  10. anonymous
    • one year ago
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    903.17

  11. Michele_Laino
    • one year ago
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    yes!

  12. anonymous
    • one year ago
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    is that the answer?

  13. Michele_Laino
    • one year ago
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    yes!

  14. anonymous
    • one year ago
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    how did you get 4/100 multiplied by 980 as 940.8 @Michele_Laino

  15. anonymous
    • one year ago
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    i got 39.2 @Michele_Laino

  16. Michele_Laino
    • one year ago
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    since we have to do this subtraction: \[\Large 980 - \left( {\frac{4}{{100}} \cdot 980} \right) = 980 - 39.2 = 940.8\]

  17. anonymous
    • one year ago
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    why do we have to do a subtraction ?

  18. anonymous
    • one year ago
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    @Michele_Laino

  19. Michele_Laino
    • one year ago
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    because the value of the computer is decreasing from its original value

  20. anonymous
    • one year ago
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    why did we have to do 4 percent of 940.8 as well as 4 percent of 980 @Michele_Laino

  21. anonymous
    • one year ago
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    thanks for the reply for my first query

  22. Michele_Laino
    • one year ago
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    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

  23. Michele_Laino
    • one year ago
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    :)

  24. anonymous
    • one year ago
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    thanks

  25. Michele_Laino
    • one year ago
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    :)

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