5x+6y=18
5x=18-6y
x=(18-6y)/5
Use that in the other equation
18(18-6y)/5 - 15y = 36
64.8-21.6y - 15y = 36
28.8=36.6y
.7868=y
Now put that number in for y on the first equation
5x+6(.78) = 18
5x + 4.68 = 18
5x = 13.32
x = 2.66
and y = .78
Answer:
On the first one, multiply 6 by 3 (18) and subtract from 27 = $11
Step-by-step explanation:
$11 divided by three
About $3.66 Per day. I don't know how to do those graphs you doin but that's the answer to the question itself. Hope I helped?
The second one:
Divide 77 by 7 days (11)
Then subtract 4 from that (which gives you 7) because you need to know how much water is used on the flowers, not the shrubs. So, the answer should be 7. Correct me if I'm wrong, people.
To give a simple answer
if you consider the equation to be that of a line.
then if the variables cancel out, then the two lines will have the same slope.
two lines with the same slope fall under two categories. Parallel lines, and lines on top of each other
parallel lines have no solutions since the lines never cross each other
lines on top of each other have infinitely many solutions since they "cross" everywhere on the line
Answer:
Expanded forms can be written like a sentence or stacked for readability
Step-by-step explanation:
Expanded Form:
5,000 + 300 + 20 + 5 = 5,325
(its like a sentence)
