1. 3.2 Applications of Systems of Equations

2. Ex 1
Find the number of dimes and quarters in a collection consisting of 104 coins worth a total of $20.15.
Coin and Stamp Problems

3. Ex 2
A basketball manager bought 7 shirts and 4 pairs of shoes for $490. Another manager, who paid the same prices, paid $290 for 5 shirts and 2 pairs of shoes. Find the cost of a shirt and the cost of a pair of shoes.
Cost Problems

4. Ex 3 Investment Problems
Mr. Smith invested $14,000, part at 5% and the rest at 8%. His total annual income from these investments was $1000. Find the amount he invested at each rate.
Investment Problems

5. Ex 4
The perimeter of a rectangle is 78 cm. The length of the rectangle is twice the width. Find the dimensions of the rectangle.
Perimeter Problems

6. Ex 5
A 700 mile flight from Chicago to New York with a tail wind takes 3hours and 20 minutes, but on the return trip flying against the wind, the flight takes 4 hours and 40 minutes. Find the plane speed and the wind speed.
Distance Problems
d = rt