Question

At the beginning of the day the stock market goes down 30 3/4 points and stays at this level for most of the day. At the end of the day the stock market 100 1/2 points from the low at the beginning of the day. What is the total change in the stock market from the beginning of the day to the end of the​ day?

Answer 1

Complete question:

At the beginning of the day the stock market goes down 30 3/4 points and stays at this level for most of the day. At the end of the day the stock market goes up 100 1/2 points from the low at the beginning of the day. What is the total change in the stock market from the beginning of the day to the end of the​ day?

Answer:

The total change in the stock market is
`69(3)/(4)`

Explanation:

Given;

the stock market at the beginning of the day = 30 3/4 points

the stock market at the end of the day = 100 1/2 points

The total change in the stock market from the beginning of the day to the end of the​ day is given by;

100 1/2 points - 30 3/4 points

`= (100 -30) + ((1)/(2) -(3)/(4) )\\\\= 70 + (-(1)/(4) )\\\\= 70 - (1)/(4)\\\\= 69(3)/(4)`

Therefore, the total change in the stock market is
`69(3)/(4)`