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2 years ago

9

A group of students was asked, "How many hours did you watch television last week?" Here are their responses: 9, 16, 11, 19, 4,

10, 15, 19

1 answer:

vichka [17]2 years ago

8 0

Answer:

So what's your Question.

I think The Mean ????

Step-by-step explanation:

So it is Add all the Values which is 103

Divide it by no. of Values which is 8

You'll get 12

Which is Mean !!!!

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Write a system of equations to describe the situation below, solve using elimination.

Sedbober [7]

Answer:

The cost of hardbook is $9 and cost of paperback is $5.

Step-by-step explanation:

Let x be the price for hardback book and y be the price for paperback book.

Mr. Yamamoto purchased 42 new hardcover books and 64 new paperback books, which cost a total of $698.

We can write the equation as:

$42x + 64y = 698$

He also purchased 42 new hardcover books and 58 new paperback books, which cost a total of $668.

We can write the equation as:

$42x + 58y = 668$

We have to use the elimination method to solve the two equations.

We eliminate x by subtracting the two equations.

$42x + 64y-(42x + 58y) = 698 - 668\\\Rightarrow 6y = 30\\\Rightarrow y = 5\\42x + 64(5) = 698\\\\\Rightarrow x = \displaystyle\frac{698 - 64(5)}{42}\\\\\Rightarrow x = 9$

Thus, the cost of hardbook is $9 and cost of paperback is $5.

8 0

2 years ago

Which line has a constant of proportionality between y and x of 1/2?

Gnesinka [82]

Answer:

It's line C.

Step-by-step explanation:

the slope of line C is 1/2 so that's the constant of proportionality

6 0

2 years ago

Line segment MN has endpoints M(4,-5) and N(-3,1). Find MN.

pshichka [43]

9.2195444572928873100022742817628. or square root of 85

8 0

2 years ago

Work out area of a triangle base 9cm height 4cm

insens350 [35]

Area = 1/2 x base x height

Area = 1/2 x 9 x 4

Area = 9 x 2

Area = 18 cm^2

6 0

3 years ago

Read 2 more answers

The slope of the line below is -2. use the coordinates of the labeled point (4,-6) to find a point - slope equation of the line

devlian [24]

Answer:

A

Step-by-step explanation:

Use the equation y-y1=m(x-x1) and sub in the values of the provided information

3 0

2 years ago