Idk what linear combination is but you can solve this way:
3x+y=4
-2x-y=-5
x=-1
3(-1)+y=4
-3+y=4
y=7
So x=-1 and y=7
It'll be at 11:11 when the hands form a obtuse angle.
Answer: 5$ in all
Step-by-step explanation:
I added 3 + 2 dollars in all
Answer:
73-2n
Step-by-step explanation:
You would have to find the proportionality of the two. If his shadow is 3 feet long, and the tree's shadow is 9 that means it is proportioned by 3. So the height of the tree would be 15.
