One way to solve the system of equations would be to solve for q (in terms of r) in the first equation to get:
9r + q = 13
q = 13 - 9r
Then, take the value for q you just found and insert it into the second equation:
3r + 2(13-9r) = -4
Then simplify and solve:
3r + 26 - 18r = -4
-15r = -30
r = 2
Now that you have the value for r, plug it into either of the original equations and solve for q:
9r + q = 13
9(2) + q =13
18 + q = 13
q = -5
r = 2; q = -5
Answer:
75°
Step-by-step explanation:
Answer:
56.32 Miles per hour
Step-by-step explanation:
Take the total distance travel (2450) and divide that by the time (43.5) to get the mph. Hope this helps!
Answer:
A
Step-by-step explanation:
Answer:
8 l
Step-by-step explanation:
1 l = 1000 mm
8000 mm = 8000/1000
8000 mm = 8 l