-85/12 _
or in decimal form its 7.08333333
or mixed number form 7 1/12
Answer:
a) 30%
b) 75.99%
Step-by-step explanation:
a) The probability that one random person will be able to speak English is equal to the percent of the population that speaks English. This is because, in the country, (number of favorable outcomes)/(number of total outcomes) = 30% = 0.3 = 3/10
b) The probability that at least one person speaks English is equal to 1 - (probability that none of them speak English). Of the 4 people, if N represents them not speaking English and Y represents them speaking English, here are a few possiblities:
NNNN
NYYY
NNYY
NNNY
YNNN
and so on. However, there is only one possibility where none of them speak English, and the opposite of "none" is "at least one". So, the probability thsat none of them speak English is P(A and B and C and D) = P(A)*P(B)*P(C)*P(D), where P(A) represents the probability that the first person doesn't speak English and so on. The probability that the first person doesn't speak English = 1 - (probability that the first person speaks English) = 1 - 30% = 0.7. Therefore, the probability that all of them don't speak English is 0.7^4 = 0.2401 and the probability that at least 1 of them speak English is 1- 0.2401 .= 0.7599 = 75.99%
Step-by-step explanation:
The answer of this equation is x = 3
470000 is the most reasonable
Answer:
Hi there!
Your answer is:
x= 1
Step-by-step explanation:
Goal- get all X's on one side, and all whole numbers on the other
2+3x -x = 4x
First, combine like terms on each side of the equal sign
2+ 2x = 4x
Next, think about the additive inverse property. What, added to 2x, equals 0? 2x + (-2x) =0! So, we <u>subtract</u> 2x from both sides!
2= 4x-2x
Simplify
2= 2x
Divide both sides by the coefficient of x (in this case, 2)
2/2 = x
2/2 is equal to 1
1= x
Hope this helps!
