If x, y, a and b are greater than zero and x/y lessthanorequalto a/b, prove that x+a/y+b lessthanorequalto a/b

Step-by-step explanation:

Given x,y,a&b are greater than zero

also

since x,y,a&b are greater than zero therefore we can cross multiply them without changing the inequality

therefore

adding 1 on both sides we get

+1+1

rearranging

0.16 or 16%

step-by-step explanation:

lets take a coin for example.

if you toss it twice, it has a 1/4 chance of landing on heads both times because 1/2 * 1/2 is 1/4.

with the cards, the chance of picking dog is 0.4. having two people pick one is like picking a card twice in a row. so 0.4 * 0.4 is 0.16, or 16%

step-by-step explanation: