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? sales increased last year, from $5,000 to $10,000. when sales dropped from $10,000 to $5,000 this year, sales decreased .

increase
a. 25%
50%
75%
100%

decrease
b. 25%
50%
75%
100%

Step-by-step explanation:

Formula

Where

change in value = Final value - initial value.

First find out the percentage of sales incresre from  $5,000 to $10,000.

As given

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

Final value = $10000

initial value = $5000

change in value = $10000 - $5000

                           =$5000

Put in the formula

Percentage = 100%

Sales increased 100% last year, from $5,000 to $10,000.

Second find out the percentage of sale decrease to $5,000 from $10,000.

As given

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

Final value =  $5000

Initial value = $10000

Change in value =  $5000 - $10000

                           = - $5000

(This negative sign shows the decrease percentage.)

Put in the formula

Decrease Percentage = 50%

When sales dropped from $10,000 to $5,000 this year, sales decreased 50% .

in mathematics, a constraint is a condition of an optimization problem that the solution must satisfy. there are several types of constraints—primarily equality constraints, inequality constraints, and integer constraints. the set of candidate solutions that satisfy all constraints is called the feasible set.

hoped i'm right lol

answer: plz mark me brainliest

7 hours, 0 minutes, 0 seconds

or:  

0.04

total weeks

or:  

0.29

total days

or:  

7.00

total hours

or:  

420.00

total minutes

or:  

25,200.00

total seconds

step-by-step explanation: