Answer:
y = -13/14 and x = 240/7
Step-by-step explanation:
3x - 12y = 114 ............eqn 1
x + 38y = -1 ..........eqn 2
Multiply eqn 2 by 3
3x + 114 = -3
Subtract eqn 2 from 1
3x - 12y = 114
- 3x + 114 = -3
____________
0 - 126y = 117
y = 117/-126
y = -13/14
Sub y = -13/14 in eqn 1
3x - 12(-13/14) = 114
3x + 78/7 = 114
Multiply through by 7
21x + 78 = 798
21x = 798 - 78
21x = 720
x = 720/21
x = 240/7 = 34.29
Answer:
400 degrees
Step-by-step explanation:
Difference
1500 - 1100 = 400 degrees difference
Answer:
3.1415926535 8979323846
Step-by-step explanation:
Answer:
13
Step-by-step explanation:
Answer:
Kelly earns more.
Step-by-step explanation:
Find how much Luna makes first.
24hx8days=192 hours
Then put the 192 hours into groups of 4.
192h/4h=48
Now, we take 48 x 500 to find how much Luna makes.
48x$500=$24000
Now, we have found how much Luna makes. Now, we find how much Kelly makes.
24hx10d=240h
Then put the 240 hours in groups of three.
240h/3h=80
Now, we take 80x$490
80x$490=$32900
(disclaimer: This method is what i use, i always come up with them takes me super long)