Isolate one term (x or y) in one of the equations
6x+6y=0
6x=-6y
X= -1y
Substitute x=-y into the other equation
-7(-y) + 2y =18
7y + 2y =18
9y=18
Y=2
Substitute y=2 into 6x+6y=0
6x + 6(2) = 0
6x + 12=0
6x= -12
X = -2
Answer:
$110
Step-by-step explanation:
First we would need to find out how many cans of dog food are required.
To find that you would divide 60 by 3.
60/3 = 20
You would then have to multiply that number by how much it costs for each pair of 3 cans, that being $5.50.
20 * 5.50 = $110
Answer:
840
Step-by-step explanation:
I=PRT
I =4000 x 0.07 x 3
I=840
Answer:
C
Step-by-step explanation:
The word “difference” tells us that this is a subtraction problem
the words “three times a number” tells us that the variable will be multiplied by three
therefore it is C, 20-3j
5 times 3 = 15 times 2 = 30 to the power of 2 = 900.
If this was the appropriate answer make sure to mark as the brainliest!
-procklown
