<span>System 1 and system 2, because the second equation in system 2 is obtained by adding the first equation in system 1 to two times the second equation in system 1
This is the correct answer because not only is it true but it also follows the property of solving systems of equations with adding the equations. To prove that it is true:
2nd equation in system #2 = 1st equation in system #1 + 2(2nd equation in system #1)
</span>10x − 7y = 18 == 4x − 5y = 2 + 2(<span>3x − y = 8)
10x - 7y = 18 == 4x - 5y = 2 + 6x - 2y = 16
10x = 7y = 18 == 10x - 7y = 18</span>
Answer:
54 degrees
Step-by-step explanation:
Every side of a regular pentagon is same.
So we have an isosceles triangle. The correspond angle of y, must equal to y (degree) too.
Also, every inner angle of a regular pentagon is 360/5=72. So we can calculate angle y, by the equation y+y+72=180.
y=54
Anthony Tedeseco will receive $148 for the bike
Answer:
8.8 david
13.2 jo
22 mary
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
