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alisha [4.7K]
2 years ago
15

Quinn leaves her house at 10:00 am and runs 3 miles at a steady pace of 6 miles per

Mathematics
1 answer:
bogdanovich [222]2 years ago
8 0

Using the relation between velocity, distance and time, it is found that Quinn returns home at 1 pm.

Velocity is <u>distance divided by time</u>, that is:

v = \frac{d}{t}

  • She walked <u>3 miles</u> at a velocity of <u>6 miles per hour</u>, thus d = 3, v = 6. The time is:

v = \frac{d}{t}

t = \frac{d}{v} = \frac{3}{6} = 0.5

  • Thus, she arrived at 10:30 am, and took a lunch break of 1 hour, so she started to return at 11:30 am.
  • Distance of <u>3 miles,</u> velocity of <u>2 miles per hour,</u> thus d = 3, v = 2. The time she took to return, in hours, is:

t = \frac{d}{v} = \frac{3}{2} = 1.5

1.5 hours after 11:30 am is 1 pm, thus, Quinn returns home at 1 pm.

A similar problem is given at brainly.com/question/24316569

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There are 3 blouse and 2 pieces cloths for sale in the market. how many possible sets are there?​
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Answer:

Each item could be included in a set or not included. That gives 2^5 = 32 ways to choose sets, including 1 set with no items, 5 sets of 1 item, 10 sets of 2 items, 10 sets of 3 items, 5 sets of 4 items, and 1 set of 5 items.

7 0
3 years ago
Find the four arithmetic means between -21 and -36.
lara31 [8.8K]
The numbers given in the problem above are part of an arithmetic sequence with first and sixth terms equal to -21 and -36, respectively. Firstly, calculate for the common difference (d).
 
                                    d = (-36 - -21) / (6 - 1) = -3

The arithmetic mean is calculated by adding -3 to the term prior to it. 

            a2 = -21 + -3 = -24               a3 = -24 + -3 = -27
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Thus the four arithmetic means are -24, -27, -30, and -33.
4 0
3 years ago
Geri ran in a marathon race. It took her 3 hours and 28 minutes to run 26 miles. How many minutes did it take her to run 1 mile
nadya68 [22]

1 hour = 60 minutes, so 3 hours = 3 * 60 = 180 minutes.

Her total time was 3 hours and 28 minutes, so 180 + 28 = 208 minutes.

Divide her total time by total miles run:

208 minutes / 26 miles = 8 minutes per mile.

5 0
3 years ago
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How do you find whether ratios are proportional
alexandr1967 [171]
Hello wonderful person!!


Okay, so first of all, welcome to brainy
Second, you have to determine whether they are equal to each other and are the same. For example, if i say 2/4 is equal to 4/8, it's considered proportional. 


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3 0
3 years ago
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In a company there are 33 male and 42 female staff. Calculate the percentage of male and female staffs
VMariaS [17]

Answer: 44%, 56%

Step-by-step explanation:

Given

A company has 33 males and 42 female staff

So, the total staff is the sum of male and female

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The percentage of male staff is

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The percentage of female staff is

\Rightarrow \text{female }\%=\dfrac{42}{75}\times 100\\\\\Rightarrow  \text{female }\%=56\%

7 0
2 years ago
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