Answer:
(-60/11,111/11)
Step-by-step explanation:
Solving simultaneously, 4x - 3y=6
-3(6x + y=42)
then it becomes, 4x - 3y=6
-18x - 3y= 126 subtracting the two equations,
22x= -120, x= -60/11 and y = 111/11
Answer:
c
Step-by-step explanation:
Answer:
Step-by-step explanation:
To calculate the weighted moving average for period 13 with weights 0.4 and 0.3.
P13 = (30.7x 0.4) + (42.0x 0.3)
P13 = 12.28 + 12.60
P13 = 24.88
D.30x+15y please help with me thanks. C:
Answer:
8.83 x 10^-5 grams
Step-by-step explanation:
3.7 x 10^-6 grams of carbon power
0.000092 grams of ammonium carbonate
0.000092 = 9.2 x 10^-5
3.7 x 10^-6 = 0.37 x 10^-5
The difference:
(9.2 x 10^-5 ) - (0.37 x 10^-5)
= (9.2 - 0.37) x 10^-5
= 8.83 x 10^-5
