Answer:
q = 
c = 
Step-by-step explanation:
First solve for q:
0.162q + 0.035c = 4
0.162q = 4 - 0.035c (move term to other side)
q = 
(divide both sides by 0.162 to get it away from q)
q = (simplify fraction)
Solve for c:
0.162q + 0.035c = 4
0.035c = 4 - 0.162q (move term to other side)
c = 
(divide both sides by 0.035 to get it away from c)
c = (simplify fraction)
Answer:
Step-by-step explanation:
Given:
1. 1/5x - 1/3y = -1
2. -3/4x +1/3y = 12
Multiplying equation 1 by 15 and equation 2 by 12
3. 3x - 5y = -15
4. -9x + 4y = 144
and then Solving both equations simultaneously, since x = -20 as stated in the question and by confirmation,
Using equation 3 or 4 to solve for y,
3(-20) - 5y = -15
-5y = 60 - 15
y = 45/-5
= -9
y = -9
Answer:
18) 21
19) 18
20) 27
21) 37
22) 38
23) 88
24) 95
25) 87
26)58
27) 77
28) 85
29) 83
30) 64
31) 37
Step-by-step explanation:
Vamos a empezar por sustituyendo las expresiónes
18) 2(^2)+2(3)+3(5)+6(-1)
4+6+15-6
10+11
21
