Answer:
A.
Step-by-step Explanation:
P(A or B) = P(A)+P(B)-P(A and B)
Now
Putting the givens
0.68 = 0.2 + P(B) - 0.12
P(B) = 0.68 - 0.2 +0.12
P(B) = 0.6
Answer:
Step-by-step explanation:
Taking the first equation , we have ,
Now according to second equation,
Plug on this value ,
On substituting this value in terms of one variable of the equation you can get the values of x and y .
Answer: d=-3
Step-by-step explanation: -7-8d=17
-8d=17+7
-8d=24
-8d/-8=24/-8
D=-3
Answer:
(B)
Step-by-step explanation:
Let us denote rectangular tiles by R and square tile by S, then
According to figure.
3 rectangular tiles +2 square tiles +2 square tiles =2 rectangular tiles +4 square tiles +1 rectangular tiles +4 square tiles
∴3R+2S+2R=2R+4S+R+4S
⇒5R+2S=3R+8S
⇒5R-3R=8S-2S
⇒2R=6S
⇒R=3S
Hence, 0ne rectangle =3 square
Answer:
mean: 10.2
median: 12
Step-by-step explanation: