Answer: There is decreased by \(1\dfrac{5}{8}\) 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 = \(\dfrac{1}{2}\)
Point decreased by on Tuesday = \(\dfrac{3}{4}\)
Point decreased by on Wednesday = \(\dfrac{3}{8}\)
So, total decreased in these three days are
\(\dfrac{1}{2}+\dfrac{3}{4}+\dfrac{3}{8}\\\\=\dfrac{4+6+3}{8}\\\\=\dfrac{13}{8}\\\\=1\dfrac{5}{8}\)
hence, there is decreased by \(1\dfrac{5}{8}\) points in stock after three days and negative integer is used to represent.
