Last year, sales at a book store increased from $5,000 to $10,000. this year, sales decreased to $5,000 from $10,000. what percentage did sales increase last year? what percentage did sales decrease this year?

Solution:

we are given that

Last year, sales at a book store increased from $5,000 to $10,000.

As we know that percentage increase is given by the formula

Percentage increase

Substitute the values we get

Percentage increase

Percentage increase %.

This year, sales decreased to $5,000 from $10,000.

Percentage Decrease

Substitute the values we get

Percentage Decrease

Percentage Decrease %.

i believe the answer is letter c) 8

step-by-step explanation:

x = 17

step-by-step explanation:

1st step: isolate x.

24 - 3x = -27

-24         -24

-3x   =   -51

2nd step: divide.

-3x     =   -51

  3             3

  x       =     17

hope this