On Monday, the value of a stock decreased by 1/2 point. On Tuesday, the value increased by 3/4 point. What number represents the change in stock value after three days?
The number 1/4. It increased by 1/4 of a point. V = value. So V - 1/2 + 3/4 = change. V - 1/2 = 1/2V+ 3/4 = 1 1/4 V. It increased from 1 to 1 1/4, or 1/4 of a point.