hi i have a question

Hi I Have A Question

Answers

Answer 1

Given the sample table below:

Total number of teenagers that get less than 8 hours of sleep each school night

Sample #1:

The number of teenagers that get less than 8 hours of sleep each night include the sum of teenagers that get less than 4 hours, teenagers that get between 4 and 6 hours, teenagers that get between 6 and 8 hours.

Thus, we have

[tex]2+9+39=50\text{ t}eenagers[/tex]

Sample #2:

Thus, we have

[tex]1+12+34=47\text{ te}enagers[/tex]

Percentage of teenagers that get between 4 and 10 hours of sleep each school night

ample #1:

The total number of teenagers that get between 4 and 10 hours of sleep is evaluated to be

[tex]9+39+44=92\text{ te}enagers[/tex]

Thus, the percentage becomes

[tex]\frac{92}{100}\times100\text{ = 90\%}[/tex]

Sample #2:

[tex]12+34+48=94\text{ te}enagers[/tex]

[tex]\frac{94}{100}\times100=94\text{ \%}[/tex]

Hence, based on the result of the survey,

About half of the teenagers get less than 8 hours of sleep each school night,

More than 90% of teenagers get between 4 and 10 hours of sleep each school night.

Hi I Have A Question

Related Questions

Solve for x to the nearest tenth.

Answers

Answer:

Step-by-step explanation:

first from the lower triangle, the unknown length is [tex]\sqrt{10^2-4^2} =\sqrt{100-16}=\sqrt{84}[/tex] so then x is equal to [tex]\sqrt{84-4^2}=\sqrt{68}[/tex] or about 8.2

The perimeter of the rectangle below is 176 units. Find the length of side BC.
Write your answer without variables

Answers

Answer:

(5y-3)+(4y+1)+(5y-3)+(4y+1) = 176

18y - 4 = 176

18y = 180

y = 10

BC = 4y + 1 = 4(10) + 1 = 41 units

1. Identify 4x + 2(x -6) = 7 as an equation, an expression, or neither A. Expression B. Equation C. Neither

Answers

Answer:

Equation

Step-by-step explanation:

Equations require equal signs.

Josh's mom gave him money to spend at an
amusement park. So far, he's used 3/10 of the
money on games and 1/4 of the money on rides.
What fraction of the money does he have left?
Give your answer as a fraction in simplest form.

Answers

Answer:

9/20

Step-by-step explanation:

3/10 + 1/4

find a common denominator, which is 20 here

6/20 + 5/20 = 11/20 he used

left over is 9/20

tia charges a set up fee of 2$ and then 0.75 a square foot to power wash driveways which equation properly displays the amount she charges to power wash a driveway

Answers

Step-by-step explanation:

0.75x+2

2 is taken and 0.75 is not optional therfore

0.75=x(per square foot) =0.75x

and

$2 fee is required

so they must pay 2 dollars plus 0.75 everysquare foot

answer:

0.75x+2

Find two numbers that the quotient 3,382/6 is between

Answers

The most appropriate choice for division will be given by

Quotient of [tex]\frac{3382}{6}[/tex] is between 563 and 564

What is division?

The process of dividing a certain number into equal parts is called division

The answer obtained after division is called quotient and the other part is the remainder. The number which is divided is called the dividend and the number by which the dividend is divided is called divisor.

General rule of division

Divisor x Quotient + Remainder = Dividend

Here,

Quotient of [tex]\frac{3382}{6}[/tex] = 563

563 is between 562 and 564

So, quotient of [tex]\frac{3382}{6}[/tex] is between 563 and 564

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The animals at a safari park include gorillas, buffalo and wallabies. There are 24 more buffalo than there are gorillas. There are 7 times as many wallabies as there are gorillas. There are the same number of buffalo as there are wallabies. How many gorillas are there at the safari park?​

Answers

The number of gorillas at the safari park is 4.

Let the number of gorillas at the safari park be x.

It is given that there are 24 more buffalo than there are gorillas.

Number of buffalo at the safari park = 24 + x

There are 7 times as many wallabies as there are gorillas.

Number of wallabies at the safari park = 7x

Now, the number of buffalo is the same as the number of wallabies.

So, we equate their numbers to find the value of x i.e. number of gorillas.

24 + x = 7x

7x - x = 24

6x = 24

x = 4

Therefore, the number of gorillas at the safari park is 4.

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important please help​

Answers

Answer:

[tex]5 \times 10^4[/tex]

Step-by-step explanation:

Let the number of grains of rice be g.

[tex]\frac{g}{1}=\frac{1}{2 \times 10^{-5}} \\ \\ g=\frac{1}{2} \times 10^5 \\ \\ =5 \times 10^4[/tex]

Slope intercept form for points through (0,-4) and (2,1)

Answers

I would like to help you but can you elaborate just a little bit more?

Answer:

y = (5/2)x - 4

Step-by-step explanation:

(0, -4) and (2, 1)

(x₁, y₁)         (x₂, y₂)

        y₂ - y₁         1 - (-4)         1 + 4        5

m = ------------- = ------------ = --------- = --------

         x₂ - x₁         2 - 0            2            2

y - y₁ = m(x - x₁)

y - (-4) = (5/2)(x - 0)

y + 4 = (5/2)x - 0

   -4                 -4

----------------------------

y = (5/2)x - 4

I hope this helps!

$15 per hour is the basic rate at a factory. After a 48-hour basic work week, overtime is paid time and a half.

(a) If no one worked overtime and the factory paid $15 840 in wages one week, how many workers are in the factory?

(b) During another week, a worker in the factory earns $810 in wages for himself. How many hours did he work for?

Answers

Answer:

(a) There are 22 workers are available in the factory.

Step-by-step explanation:

(a) Let the number of workers in the factory be x.

Basic rate = $15

Working hours in a week  = 48 hours

Total wages in a week = $ 15840

If no overtime is to be paid then according to question,

Amount paid to 1 worker = 48 X 15 = $ 720

Amount paid to x worker = 720x

15840 = 720

x = 15840/720

x = 22

A runner has a track lap time of 1 minute while at a run, 4 minutes while at a jog, and 7 minutes while at a walk. If 2/5 of the lap is paced at a run, 1/3 at a jog, and 4/15 at a walk, what is the total track lap time of the runner? Write the solution as a mixed number or a fraction in lowest terms.

Answers

The track lap time of the runner will be 3 3/5 minutes.

How to illustrate the information?

From the information, the runner has a track lap time of 1 minute while at a run, 4 minutes while at a jog, and 7 minutes while at a walk. If 2/5 of the lap is paced at a run, 1/3 at a jog, and 4/15 at a walk.

The track lap time of the runner will be:

= (2/5 × 1 minute) + (1/3 × 4 minutes) + (4/15 × 7 minutes)

Note that 1 minute = 60 seconds

(2/5 × 1 minute) + (1/3 × 4 minutes) + (4/15 × 7 minutes)

= 24 seconds + 80 seconds + 112 seconds

= 216 seconds

= 3 minutes 36 seconds.

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one hundred and twenty one million, two hundred and twelve thousand and eighty-eight in number ​

Answers

one hundred and twenty one million, two hundred and twelve thousand and eighty-eight in a number is: 121,212,088

What are all the solutions, both real and nonreal, to 4x3 + 96x = 0?

Answers

Answer:

it is 1,152

Step-by-step explanation:

4×3=12×96=1,152

Answer:a

Step-by-step explanation:

Complete the frequency table for the following set of data. =

Answers

Given the set of data:

12, 4, 11, 3, 4, 0, 13, 13, 2, 6, 11, 0, 10, 11, 3, 4, 0, 10, 13, 2, 11, 9.

Let's complete the given frequency table using the set of data given.

Frequency can be said to be the number of times a number occurs in a set of data.

hus, we have:

• 0 - 2

ubmbers between 0 - 2 in the data set: 0, 2, 0, 0, 2 ==> 5 times

• 3 - 5

3 - 5: 4, 3, 4, 3, 4, ==> 5 times

• 6 - 8:

6 - 8: 6, ==> 1 time

• 9 - 11:

: 9 - 119, 11, 11, 10, 11, 10, 11, 9 ==> 7 times

• 12 - 14:

12 - 134: 12, 13, 13, 13 =3 ==> 4 times.

Therefore, the complete table is:

need help answering

Answers

ieven

raph of the fucnction

ind

quation of the fuctcion

xpolanation

s we see it i s the graph of exponential function.

from graph we find point (0 , 2)

now , we substitute this point to find the equation.

[tex]\begin{gathered} y=0.5^x+1 \\ y=0.5^0+1 \\ y=1+1 \\ y=2 \end{gathered}[/tex]

so , this exponential function satisfy the point.

Final Answer

ence , the correct option is 1,.

Please help I’ll mark you as brainliest if correct!!

Answers

First I think this is it what grade is this though but here is what I think it us Hope this helps

The slope of the line below is
-1 over 7

Write a point-slope equation of the line
using the coordinates of the labeled point

Answers

The point slope form of the given equation is [tex](y-3)=\frac{-1}{7} (x-3)[/tex] .

What is a equation of line?

The equation y = mx + c is the general equation of any straight line where m is the gradient of the line (how steep the line is) and c is the y -intercept (the point in which the line crosses the y -axis).

If a line passes through the point  with slope m, then the point slope form of the line is

[tex](y-y_{1} )=m(x-x_{1} )[/tex]

Given that,

The slope of the line m = [tex]\frac{-1}{7}[/tex].

From the graph it is clear that the line passes through the point (3,3).

Substitute x₁= 3, y₁= 3 and  in the above equation.

[tex](y-3) = \frac{-1}{7}(x-3)[/tex]

Hence, The point slope form of the given equation is [tex](y-3)=\frac{-1}{7} (x-3)[/tex] .

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The above question is not complete.

If jack drives 876 miles to Mexico Tuesday, and 986 miles wens day , what-is the total miles he drove?

Answers

The distance travelled by Jack to Mexico on Tuesday is 876 miles.

The distance travelled by Jack to Mexico on Wednesday is 986 miles.

To determine the total miles he drove ,

The sum of the distance travelled by Jack to Mexico on Tuesday and Wednesday.

Let the total miles drove is denoted as T.

[tex]T=876+986[/tex][tex]T=1862\text{ miles.}[/tex]

Thus the total miles drove is 1862 miles.

June, Gavyn and Alex share some sweets in the ratio 3:5:4. June gets 39 sweets. How many sweets are there altogether?

Answers

Answer:

156

Step-by-step explanation:

This is a question in proportion and ratio

Since the ratio in which the sweets are shared is 3: 4 : 5 we can say that the proportion of total sweets that June gets is 3/(3 + 4 + 5) = 3/12 = 1/4

Let the total number of sweets be S

Then 1/4th of this will be June's share and we are given that the actual number June gets is 30

So we have 1/4 x S = 39

Multiplying both sides by 4:
4 x 1/4 x S = 39 x 4

S = 156

So there were 156 sweets altogether

Please help me help help me please help help me

Answers

ANSWER

t = 10.27

EXPLANATION

Step 1: Given

[tex]500e^{0.0675t}\text{ = 1000}[/tex]

Step 2: Divide both sides by 500

[tex]\begin{gathered} \frac{500e^{0.0675t}}{500}\text{ = }\frac{1000}{500} \\ e^{0.0675t}\text{ = }2 \end{gathered}[/tex]

Step 3: Take the natural logarithm of both sides

[tex]\begin{gathered} 0.0675t\text{ = ln 2} \\ 0.0675t\text{ = }0.69314718056 \end{gathered}[/tex]

Step 4: Divide both sides by 0.0675

[tex]\begin{gathered} \frac{0.0675t}{0.0675}\text{ = }\frac{0.69314718056}{0.0675} \\ t\text{ = 10.268847} \end{gathered}[/tex]

Hence, t = 10.27 (rounded to the nearest hundredth).

Help ASAP solve for the value of Z

Answers

Answer:

z = 6

Step-by-step explanation:

The angle in the middle is a right angle with a measure of 90°

Together, all three angles, makes a stright angle which is measured 180°.

So we can write the following equation to find the value of z:

5z + 1 + 59 = 90 (we don'thave to include the middle angle since we already its measure)

add like terms

5z + 60 = 90 subtract 60 from both sides

5z = 30 divide both sides by 5

z = 6

I need help with problems

Answers

Given ratio:

[tex]\frac{3}{2}\text{ : }\frac{1}{4}[/tex]

Multiply both sides by the L.C.M of their denominator

The L.C.M of 2 and 4 is 4

Hence:

[tex]\begin{gathered} 4\text{ }\times\frac{3}{2}\text{ : 4}\times\frac{1}{4} \\ 6\text{ : 1} \end{gathered}[/tex]

On your own paper, graph the system of equations and identify the solution.=2−4=−12+1

Answers

The Slope-Intercept Form of the equation of a line is:

[tex]y=mx+b[/tex]

Where "m" is the slope of the line and "b" is the y-intercept.

You have the first line:

[tex]=2x-4[/tex]

You can identify that the y-intercept is:

[tex]b_1=-4[/tex]

You can find the x-intercept substituting the following value of "y" into the equation of the line:

[tex]y=0[/tex]

And, after the substitution, you can solve for "x":

[tex]\begin{gathered} 0=2-4 \\ 4=2x \\ \\ \frac{4}{2}=x \\ \\ x=2 \end{gathered}[/tex]

Now you know that the first line passes through these points:

[tex]\begin{gathered} (0,-4) \\ (2,0) \end{gathered}[/tex]

Then, you can graph it.

Given the second line:

[tex]y=-\frac{1}{2}x+1[/tex]

You can identify that:

[tex]b_2=1[/tex]

And you can find the x-intercept by following the same procedure applied for the first line:

[tex]\begin{gathered} 0=-\frac{1}{2}x+1 \\ \\ -1=-\frac{1}{2}x \\ \\ (-1)(2)=-x \\ \\ -2=-x \\ x=2 \end{gathered}[/tex]

Then, this line passes through these points:

[tex]\begin{gathered} (0,1) \\ (2,0) \end{gathered}[/tex]

Now you can graph it.

See the graph below:

By definition, when the lines intersect, the solution of the System of equations is the point where the two lines intersect.

The answer is: First option.

What numbers are between 2/10 and 75% on a number line?

Answers

There are infinite numbers between them.
75% = 0.75
Some numbers between 0.25 and 0.75 are 0.5, 0.62, 3/10

Divide. Express your answer in scientific notation.
8.1×10^−7
3×10^−3

Answers

[tex]\frac{2.4}{10^{4} }[/tex] is the simplest form of scientific notation.

What is notation?

In mathematical notation, operations, unnamed numbers, relations, and any other mathematical objects are represented by symbols that are combined into expressions and formulae. Using scientific notation, one can express extremely big or extremely small values. When a number between 1 and 10 is multiplied by a power of 10, the result is represented in scientific notation. For instance, 650,000,000 can be expressed as 6.5 108 in scientific notation. A system of symbols for designating unique items. Example: In mathematics, the symbol "∞" stands for "infinity." There are many notations in mathematics.

Given Data

8.1×10^−7

3×10^−3

Dividing

[tex]\frac{8.1(10}{3(10}[/tex]⁷₃

[tex]\frac{8.1}{3}[/tex] × 10⁻⁷⁻⁽⁻³⁾

2.7 × 10⁻⁴

[tex]\frac{2.4}{10^{4} }[/tex]

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find the area under the standard normal curve between z=0 and z=3

Answers

The area under the standard normal curve between z=0 and z=3 is 0.4987.

How to illustrate the information?

It should be noted that because the normal distribution is symmetrical on both sides of the mean and is a continuous probability distribution, the right side of the center is the opposite of the left side.

The normal distribution was first termed by early statisticians who observed that the same shape repeatedly appeared in many distributions. The characteristics of normal distributions are as follows: Bell-like in its symmetry. The distribution's mean and median, which are both at its center, are equal.

The area will be illustrated as:

P(0 < Z < 3)

From the distribution table. In this case, it's important to look at the normal distribution table under the z score for the values of zero less than Z and Z less than 3. This will be:

= 0.9987 - 0.5

= 0.4987

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20% plain M&Ms are orange. Sample of 100 candies randomly selected. Find the man and standard deviation

Answers

Answer: μ=​20, σ=4.0

Step-by-step explanation:

If BC=5 in and AB=12in. Find the exact circumference of the circle.

Answers

EXPLANATION

We can get the circunference of the circle by applying the Pythagorean Theorem as shown as follows:

[tex]\text{AC}^2=AB^2+BC^2[/tex]

Repalcing terms:

[tex]AC^2=12^2+5^2=144+25=169[/tex]

Aplying the square root to both sides:

[tex]AC^{}=\sqrt[]{169}=13\text{ inches}[/tex]

The circunference is 13 inches.

Answer this question pls

Answers

Answer:

No

Step-by-step explanation:

Two different inputs can not have the same output. Although they can have two different outputs and the same input the reverse is not a thing. Each input has only one output, and the fact that it is the same output does not matter. It is supposed to be a function and by definition, functions are a special kind of relations allowing precisely one output for each input.

My little sister decided that she had to have a new Softball so she went to the bank where she holds her money and emptied it out completely in order to get my recent need it for the ball the money was in the form of 45 coins with me your personal little heavy for her to carry and also took a long time for her to come out the money at the store I had to take her and I got bored wedding how many pennies nickels dimes quarters and a half dollars did she have with her

Answers

Answer:

you know it's a very good question

Step-by-step explanation:

I have no idea

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