The ratio of black cows to brown cows on a farm is 3:5. If there are 48 cows in all on the farm, how many are black?

there are 18 black cows

Step-by-step explanation:

ratio of black cows to brown cows=

3:5

Total number of cows=48

Sum of ratio=3+5=8

Number of black cows=3/8 x 48/1

Number of black cows=(3x48)➗8

Number of black cows=144 ➗ 8

Number of black cows=18

e.

step-by-step explanation:

because there are always 10 numbers in a phone number.

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

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

you,

mrb