There are 40 people at a party. The ratio of men to women is 3:2. How many men and women r there at the party?? Plz help me!!

A family of five people has $200 to spend on fishing rods and fishing licenses. They spend a total of $20 on licenses. Assuming

dusya [7]

Answer:

36

Step-by-step explanation:

200-20=180

180/5=36

8 0

3 years ago

Read 2 more answers

A gambler has a fair coin and a two-headed coin in his pocket. He selects one of the coins at random. (a) When he flips the coin

Aleks04 [339]

Answer:

a) probability of choosing heads= 1/2 (50%)

b) probability of choosing the fair coin knowing that it showed heads is= 1/3 (33.33%)

Step-by-step explanation:

Since the unfair coin can have 2 heads or 2 tails , and assuming both are equally possible . then

probability of choosing the fair coin (named A)= 1/2

probability of choosing an unfair coin with 2 heads (named B)= (1-1/2)*1/2= 1/4

probability of choosing an unfair coin with 2 tails (named C)= (1-1/2)*(1-1/2)= 1/4

then

probability of choosing heads= probability of choosing A * probability of getting heads from A + probability of choosing B * probability of getting heads from B + probability of choosing C * probability of getting heads from C =

1/2*1/2 + 1/4*1 + 1/4*0 = 2/4 = 1/2

the probability of choosing the fair coin knowing that it showed heads is

P(A/B) = P(A∩B)/P(B)

denoting event A= the coin is fair and event B= the result is heads

P(A∩B) = 1/2*1/2 = 1/4

but since we know now that that the unfair coin is not possible , the probability of choosing heads is altered:

P(B)=probability of choosing heads= probability of choosing A * probability of getting heads from A + probability of choosing B * probability of getting heads from B = 1/2*1/2+1/2*1 = 3/4

then

P(A/B) = P(A∩B)/P(B) = (1/4)/(3/4) = 1/3

then the probability is 1/3

8 0

3 years ago

PLEASE HELP!!! The formula F =9/5 C + 32 expresses Fahrenheit temperature in terms of Celsius temperature. Find the Celsius temp

mrs_skeptik [129]

Answer:

The Celsius temperature is 5° when the Fahrenheit temperature is 41°.

Step-by-step explanation:

Given that:

F = $\frac{9}{5}$ C + 32