kyleallen3321 kyleallen3321

24-04-2019
Mathematics

contestada

The ratio of boys to girls at a school is 9 to 11. If 400 students attend the school, how many are girls? 50 140 220 215

Respuesta :

elizabeth287 elizabeth287

24-04-2019

It would be 220 because 20 students in all, 20×20 is the 400 students. so if you just multiplied the 9 and 11 by 20, it would match up with 400 students and you would have 220 girls. (This is not how most people work this out, but I hope it helped).

Answer Link

Otras preguntas

An organism composed of one or more cells that contain internal membrane-bound structures ; usually multicellular.

Howard Gardner proposed a model that described ____ different types of intelligences.

The distributions of X and of Y are described here. If X and Y are independent, determine the joint probability distribution of X and Y.

why must food be digested

How do I do this, im not sure what im supposed to do

What was the weighted average interest rate Colgate faced on its short-term borrowings in 2013? Enter with 1 decimal place and with % sign (Ex: 9.9%)

How does the experimental probability of choosing a yellow tile compare with the theoretical probability of choosing a yellow tile

How can you write 0.07 in the form a and b

- 6.) Shawn wants to build up his muscle mass. What should he do?

Give me 4 examples of main ideas or central ideas.