Answer:
The correct answer is option B.
(4x + 8)/(5x - 5)
Step-by-step explanation:
It is given an expression in variable x
2x/(x - 1) ÷ 5x/(2x + 4)
<u>To find the correct option</u>
2x/(x - 1) ÷ 5x(2x + 4) = 2x/(x - 1) * (2x + 4)/5x
= 2x/(x - 1) * 2(x +2)/5x
= [2x * 2 * (x + 2)]/[(x - 1)5x]
= 4(x +2)/5(x - 1)
= 4x + 8)/(5x - 5)
Let us say that t is number of months and n is the number of cases of Bangkok flu, therefore the equation we can create here is:
dn / dt = 10 t + 450
<span>where 10 represents the slope and 450 represents the y-intercept</span>
574
All your doing is subtracting!
