Cd players are going out of fashion in the modern era. if 400,000 cd players were sold this year and sales are declining at a rate of 17% per year, how many will be sold 3 years from now?

you can solve this problem using a long method to further understand the relationship of each decline in sales.

400,000 cd x 17% = 68,000

one year from now, the sales would be 332,000 (400,000 – 68,000)

332,000 cd x 17% = 56,440

two years from now, the sales would be 275,560 (332,000 – 56,440)

275,560 cd x 17% = 46,845

three years from now, the sales would be 228,755 (275,560 – 46,845)

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,