Abag contains 1 blue, 2 green, 3 yellow, and 3 red marbles, as shown.
what is the probability of drawing a red marble out of the bag without looking?
10
cvo
-10
-icv

3/9

Step-by-step explanation:

first we check the total no of marbles. then check the no of red marbles and use the no red marbles as the numerator and the total no of marbles as the denominator

900 degrees

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional