At Westonci.ca, we provide clear, reliable answers to all your questions. Join our vibrant community and get the solutions you need. Ask your questions and receive precise answers from experienced professionals across different disciplines. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

35 girls and boys went walking. The ratio is 5 girls to every 2 boys. How many boys are there?

Sagot :

luana
[tex]5x-\ girls\\\\ 2x-\ boys\\\\ 5x+2x=35\\\\ 7x=35\ \ \ | divide\ by\ 7\\\\ x=5\\\\ There\ are\ 10\ boys.[/tex]

Set up a proportion:

In a sample of 5:2, you have 7 kids in all.

So the the ratio of boys to kids in a sample of 7 is 2:7.

So set up a proportion:

[tex]\frac{2}{7}[/tex] = [tex]\frac{X}{35}[/tex]

7x =70

X = 10

Therefore, 10 of the boys went walking.