Gavin thought he was making a good investment when he heard about an online grocery company. so he bought 500 shares in the company at $25 a share. the company ended up going bankrupt, and when gavin sold his shares he only made $150 in total.

what was the percent decrease in the share price? a)1.2%
b)3%
c)82.3%
d)98.8%

i need this fast i will give brainliest

D)98.8%

Step-by-step explanation:

Given: The price of one share when Gavin bought them= $25

Then , the price of 500 shares =

Since,  Gavin sold his shares he only made $150 in total.

Therefore, the decrease in the share price =

Now, the percent decrease in the share price is given by :-

Hence, the  percent decrease in the share price = 98.8%.

{x = -1/2 ,   y = -1

step-by-step explanation:

solve the following system:

{2 x + y = -2

{10 x - 3 y = -2

in the first equation, look to solve for y:

{2 x + y = -2

{10 x - 3 y = -2

subtract 2 x from both sides:

{y = -2 x - 2

{10 x - 3 y = -2

substitute y = -2 x - 2 into the second equation:

{y = -2 x - 2

{10 x - 3 (-2 x - 2) = -2

10 x - 3 (-2 x - 2) = (6 x + 6) + 10 x = 16 x + 6:

{y = -2 x - 2

{16 x + 6 = -2

in the second equation, look to solve for x:

{y = -2 x - 2

{16 x + 6 = -2

subtract 6 from both sides:

{y = -2 x - 2

{16 x = -8

divide both sides by 16:

{y = -2 x - 2

{x = -1/2

substitute x = -1/2 into the first equation:

{y = -1

{x = -1/2

collect results in alphabetical order:

answer:   {x = -1/2 ,   y = -1