Massa says that 540 = 6 = 9. Is he right? Explain how you know using an equation.

Answer:

6 students earned a d and 80% got other

Step-by-step explanation:

Answer:

6 students, 80% of students

Step-by-step explanation:

20% of her 30 students earned a D. To find exactly how many students earned a D, we can convert the 20% into a fraction and thereby multiply the fraction by 30.

\(20\)%\(=\)

\(\frac{20}{100}=\\\frac{1}{5}\)

Ok, \(\frac{1}{5}\) of Ms. Moore's 30 students earned a D. Let's multiply.

\(\frac{1}{5}*\frac{30}{1} =\\6\)

6 students in Ms. Moore's class earned a D.

Therefore, the rest of the class earned a different grade. \(30-6=24\) students had a different grade. To find the percentage, we simply divide by the total number of students and multiply by 100%

\(\frac{24}{30} =\\\frac{4}{5} =\\0.8=\)

\(80\)%

80% of students in Ms. Moore's class got a grade other than D.

I hope this helps! Let me know if you have any questions :)

-8 < 4

hope it helps

Answer: -2≤-8<4

Step-by-step explanation:

Option C is correct interpretation. The publisher can expect the total number of words per chapter to vary by approximately 195.3 word from the mean.

In this example a book publisher published both fiction and nonfiction books, let F for fiction and N for nonfiction,

the standard deviation of total amount F+N=S=195.3,

Standard deviation is a measure which shows, how much variation such as spread, dispersion from the mean exists. the standard deviation indicates the typical deviation from the mean.

so, in this particular case we have standard deviation of total amount S=195.3.The interpretation of this value is the publisher can expect the total number of words per chapter to vary by approximately 195.3 word from the mean.

option C is correct interpretation for this case.  

learn more about standard deviation.

https://brainly.com/question/23907081

#SPJ4

Answer:

H

Step-by-step explanation:

hello

101.7 * 5.45 =

if you observe you'll see a decimal point after the third number. this tells us that the answer has a three significant figure

Answer:

x >-8

Step-by-step explanation:

22−2x<38

Subtract 22 from each side

22-22−2x<38-22

-2x < 16

Divide each side by -2, remembering to flip the inequality

-2x/-2 > 16/-2

x >-8

The approximate expected real rate of interest is find by subtracting the approximate expected inflation rate from the yield of the Treasury bill. In this case, the approximate expected real rate of interest is around 1.5%.

To calculate the approximate expected real rate of interest, we can use a simplified formula that involves subtracting the approximate expected inflation rate from the nominal interest rate. In this scenario, the nominal interest rate is 4.5%, and the expected inflation rate is 3%.

Using the simplified formula, we subtract the approximate expected inflation rate of 3% from the nominal interest rate of 4.5% to get an approximate expected real rate of interest of 1.5%.

It's important to note that this calculation provides an approximation of the expected real rate of interest and may not account for all factors and variations in inflation. For a more precise calculation, additional considerations and data would be required.

Therefore, the approximate expected real rate of interest in this case is around 1.5%. This suggests that after adjusting for an expected inflation rate of 3%, the investor can anticipate an approximate real return of 1.5% on their investment in the one-year Treasury bill.

Learn more about interest here:

brainly.com/question/29335425

#SPJ11

Shandra must work at least 11 whole hours tutoring to meet the minimum requirement of Earning $300 in a given week.

She worked 3 hours washing cars, the total number of hours she can work in a week is given as:

3 hours washing cars + x hours tutoring = 17 hours

Now, we need to determine the minimum amount Shandra must earn, which is $300.

The amount she earns from washing cars is calculated as:

3 hours * $12/hour = $36

The amount she earns from tutoring is calculated as:

x hours * $24/hour = $24x

To meet the minimum requirement of earning $300, the total earnings from both jobs must be at least $300:

$36 + $24x ≥ $300

Now, we can solve this inequality to find the range of possible values for x.

$24x ≥ $300 - $36

$24x ≥ $264

Dividing both sides of the inequality by $24:

x ≥ $264 / $24

x ≥ 11

Therefore, Shandra must work at least 11 whole hours tutoring to meet the minimum requirement of earning $300 in a given week. if Shandra worked 3 hours washing cars, she must work at least 11 whole hours tutoring to meet the minimum requirement of earning $300. The range of possible values for the number of whole hours tutoring is 11 hours or more.

For more questions on Earning .

https://brainly.com/question/31903552

#SPJ8

Answer:

$15

Step-by-step explanation:

So first we see that alicia buys 3 books for $9 and that would be 27 because 3x9=27. Now we also see that she bought 2 magazines for $4 and that would be 8 because we are multiplying 4x2. Now we add 27 and 8 which would give us 35. She uses a $50 card to make the purchase. We subtract, 50-35 and we would get 15. So alicia has $15 left on the card.

We can see here that the solutions to the triangles are:

1. 62.2°.

2. 35.9°

3. 61.9°

4. 53.1°

We can see here that using trigonometric ratio formula, we find the values of x.

We see the following:

1. Cos x = 7/15 = 0.4666

x = \(cos^{-1}\) 0.4666 = 62.2°.

2. Sin x = 27/46 = 0.5869

x° = \(sin^{-1}\)  0.5869  = 35.9°

3. Sin x = 30/34 = 0.8823

x° = \(sin^{-1}\) 0.8823 = 61.9°

4. Tan x = 8/6 = 1.3333

x° = 1.3333 = 53.1°

Learn more about triangle on https://brainly.com/question/1058720

#SPJ1

Answer:The slope is m= 1/2

(0,-2) & (2,-1)

Step-by-step explanation:

(0,-2) & (2,-1)

m=y²-y¹/x²-x¹

m=(-1)-(-2)/2-0

m=1/2

Answer:

Step-by-step explanation:

C

Answer:

the first choice

Step-by-step explanation:

Let's begin by listing out the given information:

Answer:

y=2x+4

Step-by-step explanation:

First find out the slope, pick out 2 points. For ex. (-2,0) & (0,4)

Slope=4-0/0-(-2)

=4/2

=2

Y-intercept is 4.

Slope-Intercept form: y=mx+b

m is slope & b is y-intercept

y=2x+4

HOPE I helped!

The equation tan(30°) = 5/b can be used to solve for b. The solution has been obtained by using trigonometry.

What is trigonometry?

The study of the sides, angles, and connections of the right-angle triangle falls under the purview of the branch of mathematics known as trigonometry.

We are given a right angled triangle, with angle BCA = 90° and angle CAB = 30°. Also, the length of side BC is 5 centimeters, the length of BA is 10 centimeters, and the length of CA is b.

Using trigonometry,

We know that tan theta = opposite side/ adjacent side

So,

⇒tan θ = 5/b

Here, θ = 30°

So,

⇒tan 30° = 5/b

Hence, the equation tan(30°) = 5/b can be used to solve for b.

Learn more about trigonometry from the given link

https://brainly.com/question/13729598

#SPJ1

Answer:

Answer:

a. 16

b. 80

c. Blood type AB

Step-by-step explanation:

Given:

O = 45%

A = 40%

B = 11%

AB = 4%

Total number of donors = 145

a. No. of donors that had type B blood =

Type B blood donors ≈ 16

b. No. of blood donors without blood type O =

Those without blood type O ≈ 80

c. Find the number of people that had type AB:

Type AB = ≈ 6. This is less than 10 donors.

Therefore, blood type AB had less than 10 donors.

a) The probability of the first diamond being the third card dealt is 1/4.

b) The probability of having all spades in the hand is 1/64.

c) The probability of not getting any aces is 48/64.

d) The probability of having at least one red card is 1 - (probability of having no red cards), which is 1 - 1/4 = 3/4.

a) In a standard deck of 52 cards, there are 13 diamonds. Since the first diamond must be the third card dealt, there are 51 remaining cards after the first two cards are dealt. Out of these 51 cards, 12 are diamonds. Therefore, the probability is 12/51, which simplifies to 1/4.

b) There are 13 spades in a deck, so the probability of getting a spade on the first card is 13/52. For the second card, the probability is 12/51, and for the third card, it is 11/50. Since these events are independent, we multiply the probabilities together: (13/52) * (12/51) * (11/50) = 1/64.

c) There are 4 aces in a deck, so the probability of not getting an ace on the first card is 48/52. Similarly, for the second card, it is 47/51, and for the third card, it is 46/50. Multiplying these probabilities gives (48/52) * (47/51) * (46/50) = 48/64.

d) To find the probability of having at least one red card, we can calculate the probability of having no red cards and subtract it from 1. The probability of not getting a red card on the first card is 26/52, and similarly, for the second and third cards, it is (25/51) * (24/50). The probability of having no red cards is (26/52) * (25/51) * (24/50) = 1/4. Therefore, the probability of having at least one red card is 1 - 1/4 = 3/4.

To know more about probability here: brainly.com/question/32004014 #SPJ11

Answer:4

Step-by-step explanation:

Answer:a) Given :

51 pounds of seed  can be planted in = 9 acre field.

Per pound of seed =

We can convert 9/51 in simplest fraction by dividing top and bottom by 3.

We get

Therefore, 3/17 of an acrs can be planted per pound of seed.

b) $10 amount = 16 pounds of sugar.

$1 amount = 16/10 = 1.6 pounds of sugar.

Therefore, 1.6 pounds of sugar she got per dollar.

Step-by-step explanation:

To get average speed you take:

Total distance / total time = average speed

As we can see, the total distance that the motorist travelled was:

And, the total time taken is:

Then, his average speed is:

Answer:

\(684\:\mathrm{cm^2}\)

Step-by-step explanation:

The area of any triangle is equal to \(A=\frac{1}{2}\cdot a\cdot b\cdot \sin C\), where \(a\) and \(b\) are two sides of a triangle and \(C\) is the angle between them.

Plugging in given values, we have:

\(A=\frac{1}{2}\cdot 27\cdot 82\cdot \sin 162^{\circ}=\boxed{684\:\mathrm{cm^2}}\)

Answer:

342

Step-by-step explanation:

see image

Answer:

1.98 is your tax rate of the lipstick

Using the given data points and a linear regression tool, the equation of the line of best fit is approximately y = 1.2x - 0.6. Therefore, the value of m (slope) is approximately 1.2.

To find the line of best fit for the given data and determine the value of m in the equation y=mx+b, you can use technology like a graphing calculator or spreadsheet software. Here's a step-by-step explanation:

1. Input the data points: (1, 0), (2, 3), (3,1), (4,4), (5,5)
2. Use the software's built-in linear regression function to find the line of best fit. For example, in Microsoft Excel, you can use the "LINEST" function.
3. The linear regression function will give you the values for m (slope) and b (y-intercept) in the equation y=mx+b.

Using the given data points and a linear regression tool, the equation of the line of best fit is approximately y = 1.2x - 0.6. Therefore, the value of m (slope) is approximately 1.2.

Learn more about line here:

https://brainly.com/question/28911625

#SPJ11

The right answer will be both I and II

I. In the effective rate formula, n is equal to one.

II.The nominal rate is 7.918%.

Compound interest is the interest on a loan or deposit that accrues on both the initial principal and the accumulated interest from previous periods.

The formula for the compound interest is given as:

\(A=p(1+\dfrac{r}{n})^{nt}\)

Here

A= amonut

P= principle

r=rate of interest

t=time period

n=for how much time compunded

Thus we can see in the question it is compounded annually so n = 1 and the rate is given as 7.918%

Thus the right answer will be both I and II

I. In the effective rate formula, n is equal to one.

II.The nominal rate is 7.918%.

To know more about compound interest follow

https://brainly.com/question/24924853

here we are given that a 6ft high man is flying a kite with a string of length 100ft at an angle of elevation 52° . We would like to calculate the height of the kite above the ground. For figure refer to the attachment. We would have to make use of trigonometric ratios here as ,

In ∆ ABE ,

\(\longrightarrow \sin 52^o = \dfrac{AB}{AE} \\ \)

\(\longrightarrow 0.8 =\dfrac{y}{100ft} \\ \)

\(\longrightarrow y =0.8(100ft) \\ \)

\(\longrightarrow y = 80ft \\ \)

Now the total height above the ground will be ,

\(\longrightarrow h = y + h_{man} \\ \)

\(\longrightarrow h = (80 + 6)ft\\ \)

\(\longrightarrow\underline{\underline{ h = 86\ ft. }} \\ \)

And we are done!

Answer:

A

Step-by-step explanation:

using the Sine rule in the triangle

we require the third angle

third angle = 180° - 42° - 61° = 180° - 103° = 77°

then

\(\frac{x}{sin42}\) = \(\frac{13}{sin77}\) ( cross- multiply )

x × sin77° = 13 × sin42° ( divide both sides by sin77° )

x = \(\frac{13sin42}{sin77}\) ≈ 8.9 cm ( to 1 decimal place )

The type of sampling method used in this survey is snowball sampling. Snowball sampling is a type of non-probability sampling approach.

In this technique, the initial group of study participants refers additional participants, and those participants lead to more referrals, and so on, like a snowball rolling down a hill. This technique can be used when the population of interest is unknown or challenging to access.

Debra wants to conduct a sex study on individuals who enjoy sadomasochism. She contacts a few of her friends who engage in sadomasochistic behavior. In turn, they contact others whom they know are sadomasochists or attend s/m parties. Eventually, a sample of 200 participants is obtained.

This technique is used when the population of interest is challenging to access or when the researchers lack information about the population. Here, the initial group of study participants refers additional participants, and those participants lead to more referrals, and so on, like a snowball rolling down a hill.

To know more about snowball sampling refer to-

brainly.com/question/28272047#

#SPJ11

Story:

There is a tank that can fill 4 liters of water. The 2/3 of the tank has been filled with water. How much liters have the tank filled with water?

Solution of story:

We know that:

Multiply both the terms to get the answer.

Solution:

Hence, 2 2/3 liters has been filled with water.

Hoped this helped.

A. person can do 2/3 of work a day how many times can he do that work in 4days?

Solution:-

Just multiply numerator with numerator and denominator with denominator.

\(\\ \tt\hookrightarrow 4\times \dfrac{2}{3}\)

\(\\ \tt\hookrightarrow \dfrac{4(2)}{3}\)

\(\\ \tt\hookrightarrow \dfrac{8}{3}\)

\(\\ \tt\hookrightarrow 2\dfrac{2}{3}\)

Answer:

slope = 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = 2x + 4 ← is in slope- intercept form

with slope m = 2

Answer:

9

Step-by-step explanation:

1.Solve the equation

a + 1/a = 3

a + 1 = 3a

2a = 1

a = 1/2

2. Replace 1/2 for a

1/2^3+1/1/2^3

1/8 + 1/1/8

1 1/8 divided by 1/8 = 9