Answer:
x+2y=12-------(1)
x-2y=3---------(2)
Adding equations 1 and 2
we get
2x=18
x=9
Equation 1
9+2y=15
2y=15-9
2y=6
y=3
The solution of the given system is x=9, y=3
Step-by-step explanation
Answer:
24
Step-by-step explanation:
I did the math
265.22 or 265 2/10 or 265 1/5
The height of the stack is given by the sum of the heights of the boxes:

In order to convert this result in meter, remember that

So, to covert form centimeters to meters we have to multiply by 0.01 (or divide by 100).
Which means that
