kjhollar kjhollar
  • 03-09-2014
  • Mathematics
contestada

At summer camp the ratio of boys to girls was 7:2 If there were 21 boys how many girls were there?

Respuesta :

luana
luana luana
  • 03-09-2014
[tex]Ratio:\\7:2\\\\ 7x-number\ of\ boys\\2x-number\ of\ boys\\\\ 7x=21\ \ \ |:7\\ x=3\\\\ 2x=2*3=6\\ Number\ of\ girls\ is\ equal\ to\ 6.[/tex]
Answer Link

Otras preguntas

2. Everyone was laughing, and I had no idea why. O A. compound O B. complex O C. compound-complex
What IS the value of x ? 50 ° 41 °
In a class of 18 children, 1 of them speaks primarily Chinese at home. What is the probability that a randomly selected child speaks primarily Chinese at home?
what is communication?​
complete the passive sentence​
factorise 100x-50 please help
The blue Knight soccer team Is practicing kicking the soccer ball into the goal. To begin, each player attempts kicks for 2 minutes and then reports the fractio
I am confused on this question?
What is X equal to? It’s not 90
What three groups of islands make up the Caribbean islands