Answer: 1/18
Step-by-step explanation:
9 total marbles
2 red
so the first time he picks it would be a 2/9 chance of the marble being red
the second time there would be 8 total marbles and 2 red, so it would be a 2/8 or 1/4 chance.
the probability is found by doing 2/9*1/4 which equals 2/36 or 1/18.
<span>Subtract u from 7, then divide v by the result</span>
v : (7 - u)
Answer:
3:6, 18:4 keep exploring man!
Step-by-step explanation:
think of numbers to make them both true like ex 3 for a and 6 for b so in this case you could do 3:6
Answer: 8
Step-by-step explanation:
Given
Lian has 
and she has twice as many dimes as nickels
Suppose she has 
nickels
So, the number of dimes is 
Nickel is equivalent to 5 cents and dime is equivalent to 10 cent
Therefore she has 8 dimes with her.
Answer:
x=8°
y=29°
Step-by-step explanation:
vertically opposite angles are equal
so 5x+9°=y+20°
therefore 5x-y=11°
Alternate angles are equal
so 4x+17°=y+20°
therefore 4x-y=3°
equation 1....... 5x-y=11°
equation 2......4x-y=3°
using elimination method x=8°
y=29°
