Answer:
u = ![\frac{b-a}{a+b}](https://tex.z-dn.net/?f=%5Cfrac%7Bb-a%7D%7Ba%2Bb%7D)
Step-by-step explanation:
Given
=
( cross- multiply )
a(1 + u) = b(1 - u) ← distribute parenthesis on both sides
a + au = b - bu ( add bu to both sides )
a + au + bu = b ( subtract a from both sides )
au + bu = b - a ← factor out u from each term on left side
u(a + b) = b - a ← divide both sides by (a + b)
u = ![\frac{b-a}{a+b}](https://tex.z-dn.net/?f=%5Cfrac%7Bb-a%7D%7Ba%2Bb%7D)
These things be really confusing me a unit someone explain
The answer is 3/17
Explanation:
12+12+3=27
44-27=17
therefore students studing art = 17
as students studing art & biology = 3
the answer is 3/17
hope this helps :)
Answer:
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pass=7neBw6