1.x + 3y = 6; 2x + y = 12; is what kind of system of linear equation in two variables? 2. Solve 2x + y = 15; 3x - y = 5 using elimination method. Write your solution below.

3. Your mother bought 10 kilos of mangoes and atis combined. Mango is P 100.00 per kilo and atis is P80.00 per kilo. If she paid P 1000.00 for 10 kilos, how many kilos of each kind mother bought?

(a) If x is number of kilos of mango and Y number of kilos of atis, then the equation is:

(b) Equation for the Cost of fruits:

(c) The system of equations is
and

4. Solve the given system of linear equation by graphing. Tell also what kind of systems of equation (use graphing paper and paste it here below)

2x + 3y =18
4x - 5y = 20