In a school, 2/3 of students study a language. of those who study a language, 2/5 study french. find the ratio of student who study french to students who do not study french. give your answer in the simplest form. must be in ratio __ : __

The ratio of students who study French to students who don't is 4 : 11

Ratio shows the relationship that exists between two or more numbers. It displays the number of times a value is contained in another value

The fraction of students that study a language = 2/3

fraction of students that study French = ×

Fraction of students that do not study French = 1 -

The ratio ;

÷

×

= 4 : 11

A similar question was solved here: link

4:11

Step-by-step explanation:

Given : Fraction of students study a language

Let x be the number of students in the school.

Then , No. of students study a language

Fraction of students who study a language study French  

No. of of students who study a language study French  

No. of students study French =

Then, the number of students do not study French =

Now, the ratio of student who study French to students who do not study French:-

Hence, the required answer =  4:11

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47