sales of blue -ray discs decreased by 6.5% each year. D.) How many years will it

Question

sales of blue -ray discs decreased by 6.5% each year.

D.) How many years will it take for the blue ray disc sales to decrease by half?

Score on last attempt 0.8 out of 1 Score un gradebook: 00 out of Reattempt last question below. or select another question Sales of Blu-ray dises decreased by 6,5% each year a. Determine the 1-year growth factor g35 Preview Determine the 4-yeas growt Preview c By what total percent dud sales of the Blu rav discs change Preview 36 How many years will it take for noe Blu-ray disc sairs fo

Explanation / Answer

Given, Blue ray discs decreased by 6.5% every year

let initial is N, and after t year it decreased to half that is N/2

so, N/2=N(1-0.065)^t

=> (1/2)=(0.935)^t

=> ln(1/2)=ln{(0.935)^t}

=> ln1-ln2=t*ln(0.935)

=> 0-0.693=-0.0672t

=> t=0.693/0.0672=10.21 year

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