What is the value of x if x + 2y = 6 and x + y = 5?

x=4

y=1

Step-by-step explanation:

x+2y=6 (1)

x+y=5 (2)

Using elimination method subtract (2) from (1)

x+2y-(x+y)=6-5

x+2y-x-y=1

2y-y=1

y=1

Now putting y in eq (1)

x+2(1)=6

x+2=6

x=6-2

x=4

except a rational number. : )

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%