The answer is 2 radical 3
Answer:
x and y = 0
the question looks weird and almost wrong because when you subtract the equations, you are left with nothing
Step-by-step explanation:
Multiply the top equation by 3 to make the -x a -3x instead.
Then do the top equation - the bottom equation
At this point you should be left with x
30% percent is what they marked up
Answer:
D.21
Step-by-step explanation:
7×1=7
7×2=14
<u>7×3=21</u>
Therefore 21 is a multiple of 7