I used the elimination method:
Multiply 9x+4y=7 by 2: 18x+8y=14
Multiply 6x-4y=2 by 3: 18x-12y=6
{18x+8y=14}
{18x-12y= 6}
18x-12y=6
-
18x+8y=14
_____________
-20y= -8
{18x + 8y = 14}
{-20y= -8}
Isolate y
y= 2/5 For 18x+8y=14 plug in y=2/5
Sovle 18x+8(2/5)=14 for x: x=3/5
<u>THE SOLUTIONS FOR THE SYSTEMS OF EQUATIONS ARE:
</u><u></u>y= 2/5, x=3/5
Answer:the distance is 8
( this isn’t college math if anything it’s the ending and or beginning of 6th)
Step-by-step explanation:
Answer:
- 4/3 0r - 1 1/3 0r - 1.33333333 ( the 3 keeps repeating)
Step-by-step explanation:
I would suggest to use a table so....
x y
2 0
-1 4
from 0 to 4 you add 4
from 2 to -1 you subtract 3
so y/x
4/-3 = - 1 1/3 or - 1.333333
Hope this helped a little!
Answer:
Barney 145 3 Days 310 Miles
Mary 250 5 Days 600 Miles
A) 3 D + 310 M = 145
B) 5 D + 600 M = 250
Multiplying A) by -5/3
A) -5 D - 516.6666M = -241.66666666
B) 5D + 600M = 250
Adding A) and B)
83.3333 M = 8.3333333333
M = .10 per mile
3 D = 114
Daily Rate = 38 dollars per day
Step-by-step explanation:
