6/9 = 2/3
Therefore 2/3 of the students are drinking lemonade.
Answer:
x-3y+12
Step-by-step explanation:
For the answer to the question above,
<span>Let's work with the left-hand side
We're going to times cosx/1-sinx by 1+sinx/1+sinx, you can do this because 1+sinx/1+sinx is equal to 1, so you aren't really changing anything.
After you've times the top and bottom by 1+sinx, you get:
cosx(1+sinx) / (1-sinx)(1+sinx)
The denominator is a difference of squares, so you get 1-sin^2 x
what you have now is
cosx(1+sinx) / 1-sin^2x
You know that 1-sin^2x is equal to cos^2x
so know you have
cosx(1+sinx) / cos^2x
get rid of the cosx on top by simplifying and the cos^2x so that you're left with
(1+sinx) / cos x
Therefore cosx / 1- sinx = 1 + sinx / cos x</span>
Answer:
-7/2 , 8
Step-by-step explanation:
Given, M(-5,9) be x1 , y1
N(-2,7) be x2, y2
Now,
Using mid point formula
x = x1+x2/2 y = y1+y2/2
= -5-2/2 = 9+7/2
= -7/2 = 16/2
= 8
<h3>
Answer: 12 rooms</h3>
Explanation:
Let's say that the first 26 people will occupy each of the 26 rooms. This means that, so far, there's one person per room.
There are 40-26 = 14 people left. Let's say those 14 people occupy the first 14 rooms. This means that the first 14 rooms now have 2 people in them per room. The remaining 26-14 = 12 rooms still have one person per room.