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 :

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

3/8 divided by 1/2 =

What is an synonym for photosynthesis

Explain how heat is transferred inside the earth through convection currents

How does -1 to the 6th power equal -1? shouldn't it be positive?

why did sectional differences grow in the 1820s

Blain exchanges $100 for yen before going to Japan. If each U.S. dollar is worth 88.353 yen, how many yen should Blain receive?

where does one ocean stop and another start?

Which of the following resources is renewable? A.copper B.diamonds C.wood D.fossil fuels

Please help me with this question (5y + 2)2 − 96 = 0

what is a color wheel plz help