5x + 2y = 7
-5x + 4y = 5
You can immediately eliminate the x-terms and subtract:
2y = 7
4y = 5
-_____
-2y = 2
y = -1
Substitute back to find x:
-5x + 4y = 5
5x + 4(-1) = 5
5x - 4 = 5
5x = 9
x = 1.8
Finally, substitute back to check your work:
5x + 2y = 7 => 5(1.8) + 2(-1) = 7 => 9 - 2 = 7 <--True
-5x + 4y = 5 => -5(1.8) + 4(-1) = 5 => -9 - 4 = 5 <--False
Answer:
There is no solution.
Answer:
16000 pounds.
Step-by-step explanation:
A ton is 2000 pounds, so multiply that by 8.
Answer:
Histogram A
Step-by-step explanation:
Because I was trying to find the answer but I got it wrong and it told me the answer <3
Answer:
7/3
Step-by-step explanation:
because (x,y) is the coordinates , 3/2 is y
y = 3/2
plug in y
x * 4 * 3/2 = 14
solve
x*6 =14
simplify
x= 14/6 = 7/3
PEMDAS
P- none
E- none
M- none
D- (3/1/3=1)
AS- 9-1+1=9
The answer is A.
