Respuesta :

ANSWER:

There are 600 boys and 800 girls.

SOLUTION:

We are given the following facts:

  • The total number of students is 1,400.
  • The ratio of boys to girls is 3:4.

We express this as a partitive proportion.

» Solve for x.

  • [tex] \sf 3x + 4x = 1400 [/tex]
  • [tex] \sf 7x = 1400 [/tex]
  • [tex] \sf x = \frac{1400}{7} [/tex]
  • [tex] \sf x = 200 [/tex]

Now we to solve for the number of boys and the number of girls.

» Number of boys:

  • = [tex] \sf 3x [/tex]
  • = [tex] \sf (3)(200) [/tex] = [tex] {\boxed{\sf 600}} [/tex]

» Number of girls:

  • = [tex] \sf 4x [/tex]
  • = [tex] \sf (4)(200) [/tex] = [tex] {\boxed{\sf 800}} [/tex]

Thus, there are 600 boys and 800 girls. The sum of these is the total number of students in Shiloh Middle School.

HOPE IT HELPS!