The original selling price of a jacket was s dollars. The selling price was then changed on two occasions by the store owner. Its price is now represented by 0.85(1.4s). Which expression could explain what happened to the price of the jacket A)The price was increased by 40% and then decreased by 85%.
B) The price was increased by 40% and then decreased by 15%.
C)The price was increased by 40% and then decreased by 0.15%.
D) The price was increased by 140% and then decreased by 85%.

D

Step-by-step explanation:

D) The price was increased by 140% and then decreased by 85%.

B

Step-by-step explanation:

The price was only increased by 40% because for example, the starting price was 100, then if you increased it by 140% or $140, then the price would be 240.

next, the decreased by 15% and not 85% because 100% - 15% = 85%

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.