Answer:
This is simple. And, you best not be cheating either.
15 - 1 x 18 / 6
1x18 = 18
18/6 is 3.
15 - 3 = 12
12 is the answer.
Step-by-step explanation:
X - 6y=18
2x-3y=9 |*-2
x -6y=18
-4x+6y=-18
----------------
-3x=0, x=0
2x-3y=9
2*0-3y=9
-3y=9, y=-9/3, y= -3
Quantify of sand in a bag =



Quantity of sand that escapes in every 10 minutes :-

Quantity of sand that will escape in 20 minutes :-




Quantity of sand that will remain in the sand bag :-






the answer is A
these are filler words so I can submit it haha
Answer:
Is there any picture for it?
Step-by-step explanation: