rubylobeck rubylobeck
  • 11-09-2022
  • Mathematics
contestada

Visitors to a cinema are either adults, children or pensioners.
the ratio of children to adult visitors is 1:2.
the ratio of adults to pensioners is 3:4.
a stratified sample of 85 is to be taken from the cinema visitors.
how many pensioners should be in the sample?

Respuesta :

Otras preguntas

Lim[(sqrt(cos(2x))-cubicrootof(cos(x))]/arctg(x^2) when x->0
If a 35 ft rope is cut into two sections with one section 6 times as long as the other section, how long is the shorter piece?
Lim[(sqrt(cos(2x))-cubicrootof(cos(x))]/arctg(x^2) when x->0
the difference of two numbers is 11 and their product is 42.find these numbers.
Which choice is equivalent to the expression below? 5x sqrt 2 - 2 sqrt 2 + 2x sqrt 2 A. 7x sqrt 2 - 2 sqrt 2 B. 2x^2 sqrt 2 C. 3x sqrt 2 D. 7x^2 sqrt 2
Choose the right variant 1 This book will take to years to write. A. After two years I'll write this book B. In two years time I'll have written this book C . A
let f(x)=x^2 - 16. find f^-1(x).
For what values of the variable is each rational expression undefined2x-3/2x-1( step by step please)
Which choice is equivalent to the expression below? 5x sqrt 2 - 2 sqrt 2 + 2x sqrt 2 A. 7x sqrt 2 - 2 sqrt 2 B. 2x^2 sqrt 2 C. 3x sqrt 2 D. 7x^2 sqrt 2
why do we use a coeficient to remove the propotionality