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Ludmilka [50]
3 years ago
12

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is

3131 hours and the median is 27.227.2 hours. twenty-four of the families in the sample turned on the television for 1616 hours or less for the week. the 7th percentile of the data is 1616 hours. step 2 of 5 : approximately how many families are in the sample? round your answer to the nearest integer.
Mathematics
1 answer:
nikdorinn [45]3 years ago
5 0
Not sure on the number listed as median ? 27.227.2? Please clarify.
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If one can of paint contains 2 2/5 gallons, how much paint is in one dozen cans of paint?
olasank [31]
Hi there!

Let’s take a look at the question.

One can of paint contains 2 2/5. We can make it easier by transforming the fraction (2 2/5) to a decimal (2.4). Now you have 2.4. Next, it says “one dozen”. One dozen refers to 12 cans. You’ll want to multiply 2.4 with 12.

Your answer is 28.8, or 28 4/5.


Hope this helps!
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Help and show work that will make my day ❤️
kolezko [41]
H equals 30 because 3 times 6 is 18 so 5 times 6 is 30
7 0
3 years ago
Use the diagrams at the right to find the trigonometric ratio
zzz [600]
Hi, It is simple:

Sin(A) = a / c

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Sin(J) = j / i

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This are the answers
8 0
3 years ago
A scale drawing of a square has a side length of 6 millimeters. The drawing has a scale of 1 mm : 7 km. Find the actual perimete
zvonat [6]

Answer:

The real perimeter is:

P= 24 mm *\frac{7 km}{1mm}= 168 km

And the area would be:

P = 36mm^2 *\frac{(7km)^2}{(1mm)^2} = 1764 km^2

Step-by-step explanation:

For this case we know one side of a square given 6mm.

We can begin calculating the perimeter for the scale figure with this formula:

P = 4x = 4*6 mm =24 mm

The area for this case is given by:

A = x^2 = 6mm^2 = 36 mm^2

And we know that the drawing has a scale of 1 mm : 7 km and if we convert the perimeter to km we got:

P= 24 mm *\frac{7 km}{1mm}= 168 km

And the area would be:

P = 36mm^2 *\frac{(7km)^2}{(1mm)^2} = 1764 km^2

6 0
3 years ago
Line j has a slope of − 2. Line d is perpendicular to line j and passes through the point( − 8 , 3 ).  Write the equation for
Zina [86]

Answer:

The equation is: y = 1/2x + 7

Step-by-step explanation:

The slope of j is -2. The slope of a line perpendicular to line j has a negative inverse: 1/2. The point is (-8, 3).

Use the point slope form of the equation:

y - y1 = m(x - x1)

Substitute:

y - 3 = 1/2(x - (-8))

y - 3 = 1/2x + 4

y = 1/2x + 4 + 3

y = 1/2x + 7

Proof:

Solve for f(x) when x = -8.

f(x) = 1/2x + 7

f(-8) = 1/2(-8) + 7

= -8/2 + 7

= -4 + 7

= 3, giving the point (-8, 3)

4 0
3 years ago
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