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s2008m [1.1K]
2 years ago
13

You rent 2 DVDs and 1 video game for $12. The following week, your friend rents 4 DVDs and two video games for $24. Which of the

following statements apply? One solution, no solution, infinitely many solutions, the video game cost more than dvd rentals or you cannot determine the costs of dvd or video game rentals.
Mathematics
1 answer:
oksian1 [2.3K]2 years ago
5 0

There are inifinite solutions because they are the same equation

2D + 1G = 12

and

4D + 2G = 24 (divide by 2) 2D + G = 12

2D + 1G = 12 is the same as 2D + 1G = 12


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h= 2/3d

Step-by-step explanation:

slope is the change of y value on the change of x value

4/6 = 2/3

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It’s either B or D. I’m sorry I’m not so sure but I think it’s either one of those.
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The grass in Jamie’s yard grew 16 centimeters in 10 days. Kit was growing at a constant rate how many days did it take the grass
lapo4ka [179]
0.625 day to grow 1 cm.

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7 0
2 years ago
Pls help me solve for x in 2/3=x/4+x/3
Firlakuza [10]

Answer:

x=8/7

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2/3=x/4+x/3

3x/12+4x/12=8/12

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x=8/7

7 0
3 years ago
A contractor records the areas, in square feet, of a small sample of houses in a neighborhood to determine data about the neighb
Sedbober [7]

Option c is the correct answer which represents the numerator in the calculation of variance and standard deviation.

<h3>What are the variance and standard deviation?  </h3>

In statistics, variance is a measure of the variation of data from the mean, whereas standard deviation is the measure of the normal distribution of statistical data.

A contractor records the areas, in square feet, of a small sample of houses in a neighborhood to determine data about the neighborhood.

2,400; 1,750; 1,900; 2,500; 2,250; 2,100

we need to find which of the following represents the numerator in the calculation of variance and standard deviation.

(225)^{2} + (–425)^{2}+ (–275)^{2} + (325)^{2} + (75)^{2}+ (–75)^{2} = 423,750

(650)^{2} + (–150)^{2} + (–600)^{2} + (250)^{2} + (150)^{2} + (–300)^{2} = 980,000

(250)^{2} + (–400)^{2} + (–250)^{2} + (350)^{2} + (100)^{2} + (–50)^{2} = 420,000  

92416.60

The variance is 84000

The standard deviation is 290

mean = (2400+1750+1900+2500+2250+2100)/6

mean = 2150

Subtract the data values from the mean to get

2400-2150 = 250

1750-2150 = -400

1900-2150 = -250

2500-2150 = 350

2250-2150 = 100

2100-2150 = -50

The differences are 250, -400, -250, 350, 100, -50

Then you square those values and add up the squares

(250)^2 +  (-400)^2 +  (-250)^2 +  (350)^2 +  (100)^2 +  (-50)^2 = 420,000

Hence, option c is the correct answer which represents the numerator in the calculation of variance and standard deviation.

Learn more about variance;

brainly.com/question/14116780

8 0
1 year ago
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