Question 1 - the first choice is right
Question 2- the first choice also
First, combine like terms.
12y+6=6y+12 turns into
12y-6y=12-6, which is
6y=6. Now divide both sides by 6.
y=1
now do a quick check (cause that's always a good idea).
12(1)+6=6(1)+12
12+6=6+12
18=18 ; )
Riaz : Ali
3 : 2
Add the two values; so 3 + 2 is 5
Then 100/5 = 20
So: 20 x 3 = 60
and 20 x 2 = 40
Riaz = 60%
Ali = 40%
Then write 60% and 40% as a fraction:
60% = 3/5 (3 over 5)
40% = 2/5 (2 over 5)
The answers are in bold :)
(btw sorry in advance if you spot a mistake in my answer)
A bar graph would be a better choice because it is able to show how often he/she has gotten a good score.
Answer:
x < 7
Step-by-step explanation:
the domain of a function defines the valid x values for the function.
as we go from left to right through all possible values of x, we see all values incl. x=-1 are creating a valid function result (y) for this function. until we reach x=7.
the empty ball indicates that there is no y value defined here. and for any value x>7 there is no y value defined.
so, x < 7 is the right one.
