Answer:
x = 1, y = -2, z = 3.
Step-by-step explanation:
x + 2y + 2z = 3 A
2x -2y - z = 3 B
x - 2z = -5 C
If we add equations A and B we eliminate y:
3x + z = 6 E
Multiply E by 2 :
6x + 2z = 12 F
Adding C and F we get:
7x = 7
x = 1.
Plug this into equaton C:
1 - 2z = -5
-2z = -5 - 1 = -6
z = 3.
Now plugging x = 1 and z = 3 in equation A:
1 + 2y + 2(3) = 3
2y = 3 - 1 - 6 = -4
y = -2.
Answer:
D)
Step-by-step explanation:
Each longitude has a time difference of 4 minutes.
Convert 4 hours into minutes
4 hours * (60 minutes/1 hour) = 240 minutes
Divide 240 minutes by 4 to obtain the difference in longitude
240/4 = 60
This would be true.
All the place values and it numbers are correct.
Your answer would be true.
Hope this helps!
Answer:
6 tickets
Step-by-step explanation:
Amount spent by Mr Harrison on plane tickets = $3600
Cost of each ticket = $585
Thus, largest number of tickets purchased is;
n = 3600/585
n = 6.15
Approximating to the nearest whole number gives 6 tickets
Answer: x=11.9
Step-by-step explanation:
Equation: x=34.6-22.7
