x + y = -2
x + 5y = 2
Ordered pair (-3, 1) ==> x = -3, y = 1
For the fisrt equation:
x + y = -2
-3 + 1 = -2
-2 = -2 True
For the second equation:
x + 5y = 2
-3 + 5(1) = 2
-3 + 5 = 2
2 = 2 True
Answer:
Yes, the ordered pair is a solution because it satisfies both equations
Answer:
r
Step-by-step explanation:
Since r is not given, the length we can be find using the Law of Sines using is length r.
The Sine formula or the Law of Sines
q/Sine Q = r/Sine R
q=9.5
r is the unknown
9.5/Sine 18° = r/ Sine 135°
Answer:
5:40
Step-by-step explanation:
This is a problem involving the least common difference.
If you know that the red and blue trains left at the same time at 5, you know that another red train will leave at 5:08. Another blue train at 5:10.
The way to solve this will be to write out the factors of 8 and 10 and find the smallest number that they overlap.
Red:
8, 16, 24, 32, 40, 48, 56, 64, 72, 80
Blue:
10, 20, 30, 40
You see that after 40 mnutes, they are both leaving the station again. After 40 minutes, at 5:40, they are both leaving.
Answer:
19
Step-by-step explanation:
Cause it’s angle on a straight line which is equals to 180