Answer:
a= 18x
Step-by-step explanation:
(a+d)/2 = 10x (1)
(b +c)/2 = 8x (2)
(b+c+d)/3 = 6x (3)
From the equation 2, we have (b+c)= 8x *2 = 16x
From the equation 3, we have d= 6x*3 - (b+c)= 18x- 16x = 2x
From the equation 1, we have a= 10x*2 -d= 20x - 2x= 18x
"Common" means "same for both" or "same for all".
There's nothing common about a single item. There's no such thing
as a "common"factor unless there are at least two numbers.
Answer: A
Step-by-step explanation: because I had that same test last year
Just do 240 times 1/8 which is the same thing as 240/8, which is 30
