What is the ratio of boys to girls in ms. smith's class is 3 to 4 if there are 12 boys how many total students are there?

3 boys to 4 girls. You know you have 12 boys/ ?girls. Do the boys first. 12 divides into 3 4 times, so you would multiply girls by the same amount.

3 x 4 = 12

4 x 4 = 16

So, you would have 12 boys/ 16 girls. Ratio 12 to 16 or 12 : 16

Hope this helps you. :)

why can't you?

step-by-step explanation:

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb