Answer: x=5 and x=-1
Step-by-step explanation:
X^2-4x-5=0
(X-5) (x+1)=0
X-5=0. And. X+1=0
We calculate this by multiplying the number of cookies by the number of boxes:
28*14=(20+8)*14=280+80+32=360+32=392 (that's how I like to count it, there are also other methods)
so she has 392 cookies in common.
3/3-1/3= 2/3 of the glasses
First, we need to find the difference of the two, which is 4715-3809=906. After that, we need to figure out what percentage that if of 3809, which is rounded to 0.24 or 24%.
I am not a hundred percent sure but I think it is A
Hope this helps:)
