joannadegro
joannadegro joannadegro
  • 02-03-2017
  • Mathematics
contestada

The ratio of girls to boys in the geography bee was 5 to 4. There were 36 total students. How many were boys?

Respuesta :

H1a2r3s4h5 H1a2r3s4h5
  • 02-03-2017
Girls:boys=5:4
So girls=5x
Boys=4x
total students=36
5x+4x=36
9x=36
x=4
So girls are=5x=5×4=20
Boys are=4x=4×4=16
Answer Link

Otras preguntas

NEED HELP ASAP!!!!!! Solve. Be sure to show your work as taught in the lesson: 7x - 3 > 46.
What do scientists do when they make a mistake?
Plasma makes the blood appear red. True False
aluminum oxegyn dot diagram
1. The process by which one group takes on the cultural and other traits of a larger group is called _______. assimilation pluralism culture integration 2. Chin
What led to the development of socialism and communism
x y 0 -7 1 -4 2 -1 3 2 4 5 Which equation corresponds to the function described in the table? A) y = x - 7 B) y = x - 3 C) y = x - 1 D) y = 3x - 7
What error in parallelism is made in the following sentence? Not only vacuuming, but the family wants to dust and straighten up the whole house. A. I
An expository presentation can be weakened by A. a presentation organized with two-to-five sub-points. B. a measured, strong speaking voice. C. a step-by-ste
Which of the following statements regarding the expansion of (x + y)^n are correct? A. The coefficients of xn and y^n both equal 1. B. For any term x^a