Mathematics High School

A group of 7 students was asked,
"How many hours did you watch
television last week?" Here are
their desponses.
7, 10, 5, 6, 19, 8, 17

Find the mean number of hours for
these students.
If necessary, round your answer to
the nearest tenth.
Lenovo

Answers

Answer 1

Answer:

10.3 hours

Step-by-step explanation:

(7+10+5+6+19+8+17)/7

= 72/7

= 10.3

Related Questions

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Answers

Answer:

Step-by-step explanation:

2(x+2)(x-2)+(x-3)(2x-1)

Answers

Step-by-step explanation:

this is the answer thank you

Unit Rate
Mr. Park paid $79.00 for 5 shirts.
What was the cost of each shirt in
dollars and cents?

Answers

Answer:

$15.80

Step-by-step explanation:

Given:

5 shirts for $79

Work:

79/5 = 15.80

$79.00/5 shirts= 15.80
15 dollars and 80 cents
15 1s and three quarters and a nickel

the length of a rectangular is 2 m less than twice the width.if the erea of the rectangular is 112m², what is the width​

Answers

-7 or 8 is the answer

Solve this. If you solve correctly I'll give you the brainlist thingy.

Answers

Answer:

It should be 80 sorry if I am wrong I have not done this since 5 grade

Step-by-step explanation:

The answer is m is 80 degrees

What is 2 1/2 divided by 2 2/3

Answers

Answer:

15/16

Decimal form 0.9375

Step-by-step explanation:

2 1/2 divided by 2 2/3 = 0.9375

A list of numbers is given below. If x is a number in this list, which inequality could represent x? {-5, -12, -2, -9}

Answers

Answer:

x<-1

Step-by-step explanation:

All of the numbers on/in the set are below -1. That means for that any of them to be x, the inequality would be x<-1.

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Answers

Answer:m^3/2

Step-by-step explanation: You add the exponents when you multiply.

Classify the system of equations and identify the number of solutions.
4x + 2y = −8
6x + 3y = 9
inconsistent; none
consistent, dependent; one
inconsistent; one
consistent, dependent; infinite
HELP ASAP PLS

Answers

Answer:

inconsistent, none

Step-by-step explanation:

Write both equations in slope-intercept form to see if the lines are parallel.

These two lines have slope m = −2 and different y-intercepts, therefore they are parallel.

Since the lines are parallel, the system is inconsistent and there are no solutions.

The system of equations  4x + 2y = −8 6x + 3y = 9 is inconsistent and has no solutions.

What is system of Equations?

A system of equations is a collection of two or more equations with a same set of unknowns.

We need to write both equations in slope-intercept form to see if the lines are parallel.

4x+2y=-8

2y=-8-4x

y=-4-2x,

y=-2x-4, m₁=-2

and 6x+3y=9

3y=9-6x

y=-2x+3, m₂=-2.

So two lines have slope m = −2 and different y-intercepts,

It means two line are parallel.

Since the lines are parallel, the system is inconsistent and there are no solutions.

Hence 4x + 2y = −8 , 6x + 3y = 9 is inconsistent and has no solution.

To learn more on system of equations click:

https://brainly.com/question/24065247

#SPJ2

PLS HELP ME WITH THIS QUESTION, IM LITERALLY SO FRUSTRATED PLSSSS, WILL MARK BRAINEST, AND PLS EXPLAIN HOW U GOT THE ANSWER PLS PLS PLS!!!!!!

Answers

Answer:

64:1

It doubles every 10 minutes, so it multiplies by two 6 times in an hour. 1x2x2x2x2x2x2 = 64

Which choice is equivalent to the expression shown below?
-3(3y-2x) + 2(5x-4y)

Answers

Answer:

[tex] - 3(3y - 2x) + 2(5x - 4y) \\ - 9y + 6x + 10x - 8y \\ 16x - 17y[/tex]

I hope I helped you^_^

Can someone help me do this

Answers

The answer is Angle T = angle N

-9<-8 is this equation true? Honestly I forgot lol​

Answers

Answer:

True

Step-by-step explanation:

Can somebody help me please

Answers

1500 dollars I believe

what does air smell like?​

Answers

Nothing except when it has been polluted

Answer:

Clean air has no smell

Despite all of our best intentions to make a home smell clean, the truth is that clean air should smell like nothing at all.

Step-by-step explanation:

Before the rain begins, one of the first odors you may notice as winds pick up and clouds roll in is a sweet, pungent zing in your nostrils. That's the sharp, fresh aroma of ozone—a form of oxygen whose name comes from the Greek word ozein (to smell).

Find the measure of angle A.

A) 71°
C) 349
E) 440
B) 36°
D) 1230

Answers

Answer:

The choice C) 34°

Step-by-step explanation:

[tex]75 + (x + 42) + (x + 79) = 180 \\ 2x + 196 = 180 \\ 2x = 180 - 196 \\ 2x = - 16 \\ \\ x = \frac{ - 16}{2} \\ \\ x = - 8 \\ \\ x + 42 = > - 8 + 42 = 34[/tex]

Graph the linear equation 5x-4y < 20

Answers

using a graphing calculator:

Answer: (See attached image file)

Step-by-step explanation:

Start by plotting given key features

Based on the problem, we know that the x-intercept is (0,4) We find this by plugging in 0 for y, and solving for x  (5x = 20)(x = 20/5 = 4)        (4, 0)  

We can also easily solve for the y-intercept, which is (0,-5)We find this by plugging in 0 for x, and solving for y(-4y = 20)(y = -5)      (0, -5)  

Since we know that the equation is linear, seeing as the highest exponent is 1, we know that these two points have to be connected by a single, straight line.

Finally, we shade in the side to the LEFT of the line. This is because the equation asks for LESS THAN. If however the question had been 5x-4y>20, we would shade in the region to the right.        

please help me someone

Answers

That’s the answer
Just like this

through: (2,5), parallel to x=0

Answers

Answer: y = 0x + 5

Step-by-step explanation: Parallel means same slope and then substitute the numbers for b.

How do find a slope???? I'm so confused ​

Answers

Answer:

Slope =rise/run Slope = rise/run

Explanation:

Using two of the points on the line, you can find the slope of the line by finding the rise and the run. The vertical change between two points is called the rise, and the horizontal change is called the run. The slope equals the rise divided by the run

Find the value of x.

Answers

Answer:

x = 13

Step-by-step explanation:

Sum or interior angles of a triangle is 180,

6x + 19 + 5x - 15 + 3x - 6 = 180

6x + 5x + 3x + 19 - 15 - 6 = 180

14x + 19 - 21 = 180

14x - 2 = 180

14x = 180 + 2

14x = 182

x = 182 / 14

x = 13

What is 2000-345. will mark brainliest

Answers

1,655 okkkkkkkkkkkkkk

Answer:

The Answer is 1655.

Thanks

|y+6|=2.Consider the equation

Answers

Answer:

-4

Step-by-step explanation:

The answer is Y=-4, -8

ALRIGHTY, HELP AGAIN! YOU'LL GET BRAINLIEST IF YOU'RE RIGHT! HERE'S THE PICTURE!

Answers

Option B (2,-6)How??

As we can see on grid point K is on 2,6 and when we mirror it we get the points 2,-6. They have said across x axis which means the reflection is below x-axis not parallel to it.

You can check the attachment for better understanding...

Answer:

B. (2, -6)

Sorry if you don't need this anymore...

solve for f(5). f(x)=x^2-2x

Answers

f(5)=5^2-2(5)
f(5)=25-10
f(5)=15
15!

Answer:

Exact form:

x = √2, −√ 2

Demi cal form:

x=1.41421356…, −1.41421356…

There is a bag with only milk and dark chocolates.

The probability of randomly choosing a dark chocolate is

7/12

There are 35 dark chocolates in the bag and each is equally likely to be chosen.

Work out how many milk chocolates there must be.

Answers

Answer:

25

Step-by-step explanation:

[tex] \frac{7}{5} = \frac{35}{x} [/tex]

cross multiply

[tex]7x = 175[/tex]

Divide

[tex]175 \div 7 = 25[/tex]

2y - 3y = 5 solve the equation check your solution

Answers

Answer:

y = -5

Step-by-step explanation:

-y = 5

y = -5

Check:

2(-5) - 3(-5) = 5

-10 + 15 = 5

5 = 5: Checkmark!

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Answers

28, b. Parallel

29, d. Infinite

30, c. Intercepting

Three times a number increased by 44 is the same as the opposite of the number. Find the number

Answers

Answer:

- 11

Step-by-step explanation:

let the number be n then 3 times the number is 3n and the opposite is - n

3n + 44 = - n ( add n to both sides )

4n + 44 = 0 ( subtract 44 from both sides )

4n = - 44 ( divide both sides by 4 )

n = - 11

The required number is - 11

find the sum -3/4 + 15 / 24
A. - 3/4
B. 1/2
C. 1/8
D. -1/8 ​

Answers

it’s d.-1/8
i jus know
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