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

How many sodium ions are in the initial 50.00-mL solution of Na2CO3
Why did the indians refrain from attacking the english settlers during the first fifteen years of english settlement?
Order numbers from least to greatest 15.142 15.41 1.547 5.4 51.4 I'm having such a hard time with these.
find the value of x round to the nearest tenth tan2 =4/x
which equation turns food into energy
name the scientists who shared the Nobel Prize in Physics in 1903 and describe their contributions that were recognized by the award.
What best describes tactics used by the Arab Empire when it captured a region? A) The conquerors used Visigoth mercenaries to maintain order. B) The conquerors
1,2,3 or 4? please help
The Congress of Industrial Organization developed in response to _____.
A family has 8 girls and 4 boys. A total of 2 children must be chosen to speak on the behalf of the family at a local benefit. What is the probability that 1 gi