If average weight of all male stars 71.2kg and average weight of all female co-stars is 50.8kg. Mean weight of male and female stars is 60Kg, find ratio of male stars to female stars

23:28.

Step-by-step explanation:

Let m = number of male stars and f = the number of female stars.

Total weight  of all the stars = 71.2m + 50.8f.

As  the mean weight of all the stars = 60 we have

(71.2m + 50.8f) / ( m + f) = 60

71.2m + 50.8f = 60m + 60 f

11.2m = 9.2f

11.2m // f = 9.2

m / f = 9.2 / 11.2

m / f = 23/28.

The required ratio is 23:28.

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!

this is answer of 144 cubic meters