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Allisa [31]
3 years ago
13

Dave walked to his friend's house at a rate of 4mph and returned back biking at a rate of 10mph. If it took him 18 minutes longe

r to walk than to bike, what was the total distance of the round trip?
Mathematics
2 answers:
OleMash [197]3 years ago
8 0

Answer:

I think this would be....

14 miles im not sure

Step-by-step explanation:

Elza [17]3 years ago
7 0

Answer:

your correct answer is 14 miles

Step-by-step explanation:

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Simplify (4-3i)(5+2i)
Anna [14]
Hey I'm probably too late but your answer would be 26-7i

Hope this helps :)
8 0
3 years ago
Geometry...................
m_a_m_a [10]

Answer:

The answer to your question is below

Step-by-step explanation:

Data

Number of employees = 192

See the table

Process

a) To solve this question, consider only the employees that prefer a jacket

          Male        77

          Female  +35

                         112 employees prefer a jacket

- Calculate the probability

            P = 112 / 192

            P = 0.58

b) Female and prefers a jacket

            P = (54 /192)(35/192)

            P = (0.28)(0.18)

            P = 0.05

 

8 0
3 years ago
Select the correct answer.
alexandr1967 [171]

Answer:

4 is the answer

Step-by-step explanation:

they lost 4matches

5 0
1 year ago
Read 2 more answers
Margo soccer coach brings a large bag of watermelon to practice.the mass of the bag with all the watermelon in it is 12 kg. How
nirvana33 [79]
6 watermelons, because each watermelon is 2 kg


4 0
2 years ago
According to a certain website, wine critics generally use a wine-scoring scale to communicate their opinions on the relative qu
const2013 [10]

Answer:

\bar x = 82

\sigma =  9.64

Step-by-step explanation:

Given

n = 12

87\ 91\ 86\ 82\ 72\ 91\ 60\ 77\ 80\ 79\ 83\ 96

Solving (a); Point estimate of mean

To do this, we simply calculate the sample mean

\bar x = \frac{\sum x}{n}

\bar x = \frac{87+ 91+ 86+ 82+72+91+60+77+80+79+83+96}{12}

\bar x = \frac{984}{12}

\bar x = 82

Solving (b); Point estimate of standard deviation

To do this, we simply calculate the sample standard deviation

\sigma = \sqrt{\frac{\sum(x-\bar x)^2}{n - 1}

\sigma = \sqrt\frac{(87-82)^2+ (91-82)^2+ ....+ (79-82)^2+ (83-82)^2+ (96-82)^2}{12-1}

\sigma = \sqrt\frac{1022}{11}

\sigma = \sqrt{92.91}

\sigma =  9.64

<em>Note that: The sample mean and the sample standard deviation are the best point estimators for the mean and the standard deviation, respectively.</em>

<em>Hence, the need to solve for sample mean and sample standard deviation</em>

3 0
3 years ago
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