1. Solve the following system of equations using the Substitution method:
5X-7Y= - 18
2. Solve the following system of equations using the elimination method:
Solution: Computation of the Equations
3. A total of $80,000 is invested in two funds paying 2.3% and 3.1 % simple interest. The total annual interest is $2000. How much is invested in each fund?
4. Find the point of equilibrium for a system that has a demand equation of p=49-0.0003X and a supply equation of p=33+0.00002X© BrainMass Inc. brainmass.com July 23, 2018, 1:23 pm ad1c9bdddf