A + s = 279
s = 2a
a + 2a = 279
3a = 279
a = 279/3
a = 93 <=== adult
s = 2a
s = 2(93)
s = 186 ....students
Hey there!
<h2>
ANSWER: 
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EXPLANATION:</h2>
Ratio of 
If you want to get the ratio, you should multiply the numerator(7) and denominator(3) by 2.

So your answer is:

Hope this helps!

1. y=-3/4x+23/2
2. y=-x/3+10/3
Answer:
1 11/24
Step-by-step explanation:
u multiply both numeators and both denominators for example 1 3/4 5/6 i would first turn 1 3/4 into 7/4 and then multiply