Post on 04-Jan-2016
Solve by substitution:1.y = 2x+3
y = 4x+52.A tow company charges $2 per mile plus a
fee of $20. Another company charges $5 per mile plus a $10 fee. At how many miles will the two companies cost the same amount?
Learning Target: I can solve systems of equations by elimination.
Learning Target: I can solve systems of equations by elimination.
5x – 6y = -323x + 6y = 48
6x – 3y = 35y + -6x = 3
x + y = 10x – y = 2
The sum of two numbers is 82. The difference is 14. What are the two numbers?
Page 354(8, 16, 22)
Solve by elimination:1.2x + 4y = 84x – 4y = 4
2.The sum of two numbers is 50. The difference of the two numbers is 6. What are the two numbers?
Learning Target: I can solve systems of equations by elimination.
Learning Target: I can solve systems of equations by elimination.
2x+ 5y = -2210x + 3y = 22
-2x + 15y = -327x – 5y = 17
2x + 7y = -7 7y + 5x = 14
The sum of two numbers is 92, and their difference is 20. What are the numbers?
Page 360 (11-13, 19)
Solve by elimination:1.4x + 2y = 25x – 4y = 6
2.The sum of two numbers is 158. The difference of the two numbers is 72. What are the two numbers?
Learning Target: I can solve systems of equations by elimination.
Learning Target: I can solve systems of equations by elimination.
4x + 2y = 147x – 3y = -8
15x + 3y = 9-7y – 10x = 4
8x + 3y = -214x + 5y = -7
Tickets are being sold to a play. They are $3 for kids and $7 for adults. The school sold a total of 250 tickets. The total amount of money collected was $1250. How many kids tickets were sold? How many adult tickets were sold?
Page 360(16-18, 30)