grewb3eraad9oiz grewb3eraad9oiz
  • 19-12-2016
  • Mathematics
contestada

A class of 28 students. the ratio of girls of 3 girls 4 boys. what is the ratio for the number of boys to total number students in the class?

Respuesta :

greenacres greenacres
  • 19-12-2016
You need to make a proportion.  Cross multiply then divide

boys          4      x
students    7      28

(4)(28) = 7x
112 = 7x
x= 16

There are 16 boys
Answer Link

Otras preguntas

what are tariffs and how do they impact the economy
I don't know how to do this
how old is Tennessee
Just as you can learn to drive a car without knowing much about car engines, you can learn to use a computer without understanding the technical details of how
why are deltas rare in south african rivers
Factor completely. x2+3x−40 Enter your answer in the box.
Please help me, we aren't learning all of this stuff yet!
Carefully read the following sentence: “Patrick made fun of his younger brother when he was too chicken to enter the haunted house alone.” What connotation of
A painting is purchased for $350. If the value of the painting doubles every 5 years, then its value is given by the function V(t) = 350 • 2t/5, where t is the
When romeo and juliet meet, how do they find out their families are enemies?