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Sonja [21]
3 years ago
14

. What are the lower, middle, and upper quartiles of this data? 23, 15, 22, 15, 23, 15, 13, 21, 14 a. lower: 15, middle: 15, upp

er: 22 b.lower: 14, middle: 15, upper: 23 c.lower: 13, middle: 15, upper: 23 d.lower: 14.5, middle: 15, upper: 22.5
Mathematics
2 answers:
Serggg [28]3 years ago
5 0

Answer:

Last option: lower quartile = 14.5, middle = 15 and upper quartile = 22.5

Step-by-step explanation:

The given data is 23, 15, 22, 15, 23, 15, 13, 21, 14.

And we have to calculate lower, middle and upper quartiles of this data.

For this we arrange the numbers from lowest to highest.

13, 14, 15, 15, 15, 21, 22, 23, 23.

in this sequence the first quarter is 13, 14, 15, 15

Therefore the lower quartile will be = (14 + 15)/2 = 29/2 = 14.5

Middle term or middle is 15.

Second quarter is 21, 22, 23, 23

Therefore the upper quartile will be = average of the middle terms = (22+23)/2 = 45/2 = 22.5

Therefore lower quartile = 14.5, middle = 15 and upper quartile = 22.5

icang [17]3 years ago
4 0
The correct answer us D. lower: 14.5 middle: 15 upper: 22.5
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A truck can be rented from Company A for $90 a day plus a $0.20 per mile .Company B charges $20 a day plus $0.70 per mile to ren
Alex787 [66]

The number of miles in a day at which the rental costs for Company A and Company B are the same is 140 miles

<h3>Rental cost</h3>

Let

  • Number of miles = x

Company A:

90 + 0.20x

Company B:

20 + 0.70x

  • Equate both rental cost

90 + 0.20x = 20 + 0.70x

90 - 20 = 0.70x - 0.20x

70 = 0.50x

  • Divide both sides by 0.50

x = 70/0.50

x = 140 miles

Therefore, the number of miles in a day at which the rental costs for Company A and Company B are the same is 140 miles

Learn more about rental cost:

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8 0
1 year ago
What’s the value of X ? PLS HELP )):
motikmotik

Answer:

By angle sum property,

56 + 92 = 148

180 - 148 = 32

linear pair

so ,  180 - 32

= 148

Hope it helps

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6 0
3 years ago
If Roberto does a job in 11 hours and with the help of Sarah they can do it together in 2 hours, how long would it take Sarah to
Levart [38]
I think it is seven but im probaly wrong
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3 years ago
∠ and ∠ are supplementary angles. If ∠ = (2 − 30)° and ∠ = 4, find the measure of the larger angle
Gala2k [10]

Answer:

We get ∠A =40° and ∠B = 140° and ∠B = 140° is measure of larger angle

Step-by-step explanation:

we have  ∠A = (2x − 30)° and ∠B = 4x, and we need to find measure of larger angle. And ∠A and ∠A are supplementary angles.

If the angles are supplementary there sum is equal to 180° i.e ∠A + ∠B = 180°

So,  First we have to find the value of x. and then we can determine larger angle.

We know: ∠A + ∠B = 180

2x-30+4x=180

6x-30=180

6x=180+30

6x=210

x=210/6

x=35

So, value of x is x=35

Now finding ∠A and ∠B

∠A = (2x − 30)°

∠A = (2(35) − 30)°

∠A = (70 − 30)°

∠A =40°

and ∠B = 4x

∠B = 4(35)

∠B = 140°

So, we get ∠A =40° and ∠B = 140° and ∠B = 140° is measure of larger angle

6 0
3 years ago
A spray irrigation system waters a section of a farmer’s field. If the water shoots a distance of 85 feet, what is the area that
gtnhenbr [62]

Answer:

3,781

Step-by-step explanation:

To solve this problem, we will find the area of the whole circle and use that to find teh area of the 60º section.

First, recognize the formula for the area of a circle:

A = 3.14r^{2}

In this scenario, the radius (<em>r</em>) is 85 feet:

A = 3.14(85)^{2}

A circle is 360º and we only require the area of 60º. 360º / 60º = 6 so we will divide by 6:

A = \frac{3.14(85)^{2} }{6}

Finally, we will simplify and round:

A = 3,781

7 0
2 years ago
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