Laura kept track of the trick-or-treaters who came to her door and found that 2/3 were dressed as ghosts and 1/6 were dressed as witches. What fraction of the trick-or-treaters were dressed as either ghosts or witches?

just took the test and my answers down below!

step-by-step explanation:

check the pic :

2*2=3

two times two is four

i dont understand what you mean so pls comment

1 f.1=1(2)+in(1)

1=2+1in

-2   -2

-1=1in

-1=in

3: f(3)=x(3)+in(3)

3f=3x=3in

2+2=f.900,fh

fi33

fi3wfwp

eilkfh2p=21

0+1=293 023i

29u4pe2e

203ru

hope it !

presumably all methods would give the same solution; for each choice we just try x=-4, y=2 and see if it checks.

a.

3x+13y=3(-4)+13(2)=-12 + 26 = 14   that checks

6x+11y=6(-4)+11(2)=-24 + 22 = -2 that checks too

b.  

4x + 5y =4(-4)+5(2)=-16 + 10 = 6   nope

c.

5x+4y = 5(-4)+4(2)=-20 + 8= -12 nope

d.

10x+3y = 10(-4)+3(2)=-40 + 6 = -34 nope

answer: a (the first one) is correct