Question

Ratio of boysw to girls of 460 students is 11:12. Find the number of boys. Pretty sad, but how do i find this again?

Answer 1

let boys be x..
so girls = 460 - x..

the ratio says, x/ (460-x) = 11/12...

can u get x ??

Answer 2

is that x divided by (460-x) =11/12?

Answer 3

yes...

Answer 4

so whats x ??

Answer 5

well i did something different.... i did 11/23 x 460 and got 220. but i dont know how to do it your way...

Answer 6

and your way is the way i need to do it!

Answer 7

it says ratio of boys to girls of 460 students..

so x/ (460 - x) = 11/12..

so 12x = 460 (11) - 11x

12x + 11x = 460(11)

23x = 460 (11)

x = 220.. = boys

and girls = 460 - 220= 240... = girls..

Answer 8

if the ratio is 11:12, that tells me that there are groups of (11+12)

N(11+12) = 460 tells us how many groups there are

N(11:12) tells us how many boys and girls there are

Answer 9

@maherman97 : still confused ??

Answer 10

well i dont understand where the (11) comes from...

Answer 11

like you have 12x+11x=460 i understand that... but where the other (11) comes from

Answer 12

no.. y 12x + 11x ??

Answer 13

it says, total 460 students..

if b + g = 460

so if boys would be x, than girls should be (460 - x) ..

right ??

Answer 14

?????

Answer 15

yeah sorry haha my bad.

Answer 16

dont be sorry !!!

Answer 17

thanks tho! ive got another one.. State the ratio in simplest form: three days to three weeks. would that be 3:21 which would simplify to 1:7?

Answer 18

yup..

3/ (3 * 7) .. 7 days a week..

3/21.. = 1/7...

Answer 19

okay thanks!

Answer 20

W/c...