Xample 4
p. 344
23. economics in 2000, the demand for nurses was 2,000,000, while the supply was
only 1,890,000. the projected demand for nurses in 2010 is 2,820,000, while the
supply is only projected to be 1,810,000.
a. define the variables, and write equations to represent these situations.
b. use substitution to determine during which year the supply of nurses was
equal to the demand.