Think of it this way:
You are trying to make a ratio to the months with thirty days and the ones who don't.
So,
there are 4 months a year with 30 days.
That means that there are 12-4= 8 months a year that are not 40 days.
It said the months to 30 days first in the problem.
4:8
Divide each side by 4, since both are divisible by 4.
1:2
For every one month of 30 days, there are 2 months that do not have 30 days.
1 to 2 is your answer.
I hope this helps!
~kaikers
Answer:
C
Step-by-step explanation:
3(2a+1)=-5(a+6)
First expand the brackets.
6a+3=-5a-30
Now add 5a to both sides.
11a+3=-30
Then subtract 3 from both sides.
11a=-33
Finally divide both sides by 11.
a=- 33/11
=-3
Answer:
Can you take picture, please?
Answer:
where −5 ≤ x ≤ 3
Step-by-step explanation:
The given function is 
.
We want to select the option that describes all the solutions to the parabola.
The domain of the parabola is −5 ≤ x ≤ 3.
This means that any x=a on −5 ≤ x ≤ 3 that satisfies (a,f(a)), is a solution.
This can be rewritten as 
Therefore for x belonging to −5 ≤ x ≤ 3, all solutions are given by:
where −5 ≤ x ≤ 3.
