Answer:
-21x-30y+31
Step-by-step explanation:
Answer:
5.5
Step-by-step explanation:
Given:
18 -7x = -20.5
We can find x by subtracting 18, then dividing by the coefficient of x. (This is known as a 2-step equation.)
-7x = -38.5 . . . . . subtract 18 from both sides
x = -38.5/-7 = 5.5 . . . . .divide by -7
The value of x is 5.5.
Answer:
The probability is 5/11
Step-by-step explanation:
Let's call V the event that the letter taken at random is a vowel.
Let's call E the event that the man is English and A to the event that the man is American.
If 40 percent of the English-speaking men at the hotel are English means P(E)=0.40 and 60 percent are Americans means P(A)=0.60
In ''color'' we have 2 vowels out of 5 letters so P(V/A)=2/5
In ''colour'' we have 3 vowels out of 6 letters so P(V/E)=3/6=1/2
P(E/V)=P(E∩ V)/P(V)
P(V)=P(V|E)P(E) +P(V|A)P(A)
P(V)=(1/2)0.40+(2/5)0.60=0.44
P(E∩V)=P(V|E)P(E)=(1/2)0.40=0.20
P(E/V)=0.20/0.44=0.45454545=5/11
(1, 64), (2, 32), (4, 16), (8, 8).
