rhiannacj
rhiannacj rhiannacj
  • 12-06-2022
  • Mathematics
contestada

Please help me with this probability question, I’ve got my maths exam tomorrow (13th June)

Please help me with this probability question Ive got my maths exam tomorrow 13th June class=

Respuesta :

konrad509
konrad509 konrad509
  • 12-06-2022

[tex]\dfrac{2}{n-1}=\dfrac{3}{n}-0.1\\2n=3(n-1)-0.1n(n-1)\\2n=3n-3-0.1n^2+0.1n\\0.1n^2-1.1n+3=0\\n^2-11n+30=0\\n^2-5n-6n+30=0\\n(n-5)-6(n-5)=0\\(n-6)(n-5)=0\\n=6 \vee n=5[/tex]

Answer Link

Otras preguntas

How much should you invest today if, in 6 years, you want to have $4000 in an account that pays 2.9% interest compounded quarterly? Assume that you will not ma
What is the shaded portion of the circle
What was a major weakness of the articles of confederation government?
What do the numbers 3 and 4 refer to in 3NH4?
porcelain basin is made from ?​
One minister, Thomas Weld,reported that her “custom was for scholars to propound questions and she (gravely sitting in the chair) did make answers thereunto.” T
Whats is hola cómo estás
If f(x) = [tex]x^{2} -2^x,[/tex] what is the value of f(3) ? PLEASE HELP! WILL PUT BRAINLIESTT!
Define full and partial well abandonment.
A garden has an area of 240 ft. Its length is 8 ft more than its width. What are the dimensions of thegarden?​