Whats the answer marking brainliest:D

On the return trip, the bird travels 3 miles per hour slower and has 5 miles left after 3 hours. It means that the speed at which the bird travelled is 18 - 3 = 15 mph. Also, the distance covered in 3 hours is 36 - 5 = 31 miles. Therefore,

a) distance of the entire trip is

36 + 36 = 72 miles

b) time spent in travelling downwind from its nest is 2 hours

Time for the return part is

3 hours + 5/15 = 3 + 1/3 × 60 minutes

= 3 hours 20 minutes

Total time for the trip is

2 hours + 3 hours 20 minutes

= 5 hours 20 minutes 0 seconds

7 0

4 years ago

The manufacturers of m&m's claim that 20% of the milk chocolate m&m candies are orange. find the mean and standard devia

lora16 [44]

The mean of a sampling distribution of a sample with proportion, p and sample size, n is given by $\mu=np$ .

The standard deviation of a sampling distribution of a sample with proportion, p and sample size, n is given by $\sigma= \sqrt{np(1-p)}$

Given that the manufacturers of m&m's claim that 20% of the milk chocolate m&m candies are orange. The proportion is p = 0.2

The mean of the sampling distribution of the sample proportion of orange m&m's for samples of size 100 is given by $\mu=100(0.2)=20$

The standard deviation of the sampling distribution of the sample proportion of orange m&m's for samples of size 100 is given by $\sigma= \sqrt{100(0.2)(1-0.2)} = \sqrt{16} =4$

8 0

3 years ago

Evan is going to the 50th state fair this weekend, it cost $10 to enter and each ride is $2. Create a linear function that could

alexgriva [62]

Answer:

y represents the total amount he spent in x amount of rides+ the $10 fee.

Step-by-step explanation:

At x=0, y=10 because he needs to pay $10 to enter, and he haven't rode on anything yet.

x=1, y=12

x=2, y=14

x=3, y=16

... and so on.

3 0

3 years ago