Answer:
C) It is the only solution to the system.
Step-by-step explanation:
3x + 3y = -30
2x + y = -17
3(-7) + 3(-3) = -30
-21 + -9 = -30
-30 = -30
True
2x + y = -17
2(-7) + (-3) = -17
-14 + -3 = -17
-17 = -17
True
I think the greatest number less than 700 with 9 in the tens place and different digits in each of the other places is 698.
I chose 6 to be in the one of hundreds place because it is the greatest number that is less than 7 in the hundreds place. I also chose 8 to be in the ones place because it is different from 6 and 9 and the greatest number in the ones place that is not 9.
Answer:

Step-by-step explanation:

Answer:
AB =7 and CD = 7
BC =4 and AD =4
Step-by-step explanation:
A( 1,3)
B (1,10)
C (5,10)
D (5,3)
As we can see in the graph, the AB = CD and BC = AD
AB = the distance between the y points since the x values are the same
AB = 10-3 = 7
AB =7 and CD = 7
BC = the distance between the x points since the y values are the same
BC = 5-1 =4
BC =4 and AD =4