Answer: There is decreased by [tex]1\dfrac{5}{8}[/tex] points in stock after three days and negative integer is used to represent.
Step-by-step explanation:
Since we have given that
Point decreased by on Monday = [tex]\dfrac{1}{2}[/tex]
Point decreased by on Tuesday = [tex]\dfrac{3}{4}[/tex]
Point decreased by on Wednesday = [tex]\dfrac{3}{8}[/tex]
So, total decreased in these three days are
[tex]\dfrac{1}{2}+\dfrac{3}{4}+\dfrac{3}{8}\\\\=\dfrac{4+6+3}{8}\\\\=\dfrac{13}{8}\\\\=1\dfrac{5}{8}[/tex]
hence, there is decreased by [tex]1\dfrac{5}{8}[/tex] points in stock after three days and negative integer is used to represent.
