The product of 15 and a number x is −75.

Answer:

-1/2

Step-by-step explanation:

Answer:

Khalid’s rate is ___140_ miles per hour. Jesse’s rate is _150___ miles per hour. So, _Jesse’s___ train traveled at a faster speed.

Step-by-step explanation:

The general equation of a straight line is

y = mx + b

for y = 150x

We have the slope as 150

This is 150 miles/hour

This relates to Jesse’s train speed

for Khalid, we have his own speed obtainable from the graph

The speed is simply the slope of the graph

We proceed to select two points from the graph and find the slope

The points are; ((1,140) and (4,560)

Mathematically, the slope will be;

m = (y2-y1)/(x2-x1)

m = (560-140)/(4-1) = 420/3 = 140 miles per hour

Answer:

15 dollers

Step-by-step explanation:

Answer:

$15

The difference is 3 dollars

Answer: Mark up percent = 20%

Step-by-step explanation:

Given: Cost price of each T-shirt = $5.00

Amount required = $450

Total students = 75

Market price for each T-shirt to raise the required amount = (Amount required ) ÷ 75

= $450 ÷ 75

= $ 6

Mark up percent = [tex]\dfrac{\text{Market price - Cost price}}{\text{Cost price}}\times100[/tex]

[tex]=\dfrac{6-5}{5}\times100\\\\=20\%[/tex]

Hence, Mark up percent = 20%

Answer:   -19+27

Step-by-step explanation:

Answer:

1. The sum of two times a number (x) and -2 is at least 8 is first

2. Seven subtracted from 4 times a number (x) is more than 13 is second

3. Four added to 3 times a number (x) is less than 19 is third

4. Two less than 3/2 of a number (x) is no more than 5 1/2 is last

LOVE YOUR PFP!!!

Step-by-step explanation:

Answer:

1. Two less than 3/2 of a number (x) is no more than 5 1/2 is last

2. Seven subtracted from 4 times a number (x) is more than 13 is second

3. Four added to 3 times a number (x) is less than 19 is third

4.The sum of two times a number (x) and -2 is at least 8 is first

Step-by-step explanation:

got it right

Answer:

n = 18

Step-by-step explanation:

I hope this helps!

Answer: 18.5% of the bill.

Step-by-step explanation:

Since the bill was 42 dollars while the total amount was 49.77, we need to subtract 42 by 49.77.

49.77 - 42 = 7.77.

So the tip was $7.77.

But then we also have to find the tip as a percentage.

So we should do 7.77 divided by 42, because 42 is the original amount.

7.77 ÷ 42 = 0.185, but as a percent you have to move to the left two places. So the decimal is 18.5.

In conclusion, the tip was 18.5% of the bill.

Hope this helps!

Domain: possible x values

Between -10 and 6

Solution: -10 < x < 6

Answer:

4x + 17

Step-by-step explanation:

10x+5-2(3x-6)

10x + 5-6x+12

Answer:

72 feet

Step-by-step explanation:

Given that:

The speed of Erica while descending down the mountain = 36 feet per hour

Time at which the descent was started = 10 AM

Time at which the descent was finished = 6 PM

To find:

The change in elevation after two hours ?

Solution:

First of all, let us learn about the relation between speed, distance and time.

The formula between speed, distance and time is given as:

[tex]Speed = \dfrac{Distance }{Time}[/tex]

Here, we are given that:

Speed = 36 feet per hour

Time = 2 hours

We have to find the Distance now.

Putting the given values:

[tex]36 = \dfrac{Distance}{2}\\\Rightarrow Distance = 36 \times 2\\\Rightarrow Distance = \bold{72\ feet}[/tex]

Change in elevation = 72 feet

[tex]\huge\sf\bigstar\underline{\underline\pink{Answer:-}}[/tex]

Yes, The number 379,098 is divisible by 9

As, the divisibility rule of 9 is sum of all digits is divisible by 9.

Here, 3+7+9+0+9+8

[tex]\orange\Rightarrow[/tex] 36

36 I'd divisible by 9.

[tex]\therefore[/tex] 397,098 is divisible by 9.

Step-by-step explanation:

The equation is y = -x - 4.

Answer:

The length of Bob's snake = x = 80 inches

The length of Mary's snake = y = 30 inches

Step-by-step explanation:

Let the length of Bob's snake = x

the length of Mary's snake = y

From the above question:

Bob's pet snake is 10 inches shorter than three times the length of Mary's pet snake.

x = 3 × y - 10

x = 3y - 10

If both their snakes laid together end to end measure 110 inches, how long is Bob's snake?

x + y = 110 inches

Substance 3y - 10 for x

3y - 10 + y = 110

Add 10 to both sides of the Equation

3y + y -10 + 10 = 110 + 10

4y = 120

y = 120/4

y = 30 inches

x + y = 110 inches

x + 30 inches = 110 inches

x = 110 inches - 30 inches

x = 80 inches

Answer:

Step-by-step explanation:

The question doesn't seem complete, but the question is likely to ask for 2 things: the equation of the ellipse and it's foci. So I'll respond to that. Also, the ellipse will be at the center since the artist wants the largest.

Firstly, the equation of an ellipse at the center is given by:

(x²/a²) + (y²/b²) = 1 where a > b.

Since the artist wants to make the largest ellipse, then the length of the rectangle will be the length of the ellipse, same applies to the width.

Since the length is 60, then a = 60/2 = 30

Since the width is 40, then b = 40/2 = 20

Therefore, the equation of the ellipse is:

(x²/30²) + (y²/20²) = 1

To find the foci we need to know the center and this can be gotten by

c² = a² – b²

c² = 30² – 20² = (30 + 20)(30 – 20) = (50)(10) = 500

c = √(500) = 10√(5).

The foci, since it's at th center would be:

(–10√(5), 0) and (+10√(5), 0)

The largest ellipse that the artist can make on the considered rectangular wooden piece will have area as: [tex]\dfrac{x^2}{900} + \dfrac{y^2}{400} = 1\\[/tex](assuming its major and minor axes lie on x and y axis respectively)

Suppose that the major axis is of the length 2a units, and that minor axis is of 2b units, then if major axis is on x-axis and minor axis is on y-axis, then the equation of that ellipse would be:
[tex]\dfrac{x^2}{a^2} + \dfrac{y^2}{b^2} =1[/tex]

For this case, as we have rectangular piece of board the maximum ellipse will have it's major axis of length 60 inches, and of minor axis as 40 inches.

Thus, we have:

[tex]a = 60/2 = 30\: \rm inches\\b = 40/2 = 20 \: inches[/tex]

Thus, if the rectangle is placed such that the major axis is on x-axis, and minor axis is on y-axis, then the equation of that ellipse would be:

[tex]\dfrac{x^2}{30^2} + \dfrac{y^2}{20^2} = 1\\\\\dfrac{x^2}{900} + \dfrac{y^2}{400} = 1\\[/tex]

Thus, the largest ellipse that the artist can make on the considered rectangular wooden piece will have area as: [tex]\dfrac{x^2}{900} + \dfrac{y^2}{400} = 1\\[/tex](assuming its major and minor axes lie on x and y axis respectively)

Learn more about ellipse here:
https://brainly.com/question/16868628

Answer:

T = $19.50 + $0.25(m - 200)

Step-by-step explanation:

Using the information provided we can create the following equation. This equation subtracts 200 from the total number of minutes and multiplies this by the cost per minute. Then it adds the fixed cost for the initial 200 minutes to get the total of the bill (T).

T = $19.50 + $0.25(m - 200)

Now that we have the equation we can plug-in you total for last month's bill and solve for m to calculate how many minutes you used last month.

$29.50 = $19.50 + $0.25(m - 200) ... distribute 0.25

$29.50 = $19.50 + $0.25m - 50  ... combine like terms

$29.50 = $0.25m - $30.5 ... add 30.5 on both sides

$60 = $0.25m ... divide both sides by 0.25

240 = m

Finally, we can see that you used a total of 240 minutes last month.

Answer:

A. 16 x 26

Step-by-step explanation:

Pruduct means the answer to a multiplaction problem.

Answer:

The answer is A

Step-by-step explanation:

The product means it's a multiplication

Answer:

1. 15.708

2. The radius would be half of the distance across the drain, or half of the diameter. Half of 3.8cm, or 3.8cm / 2 is 1.9cm.

The circumference is the distance around the drain, or if you trace the entire circle. The formula to find the circumference of a circle is 2 multiplied by pi and the radius of the circle, or C = 2(pi)r. Here, we just found the radius, so the circumference is 2 * pi (which is approximately 3.14) * 1.9cm, or approximately 11.9cm!

Step-by-step explanation:

Responder:

Los valores de y son 3/5 y -1

Los valores de x son = -12/5 y -4

Explicación paso a paso:

Dadas las eqautions;

x + 3 = y ...... 1

x ^ 2- 16y ^ 2 = 0 ..... 2

Sustituya la ecuación 1 en 2 que tendremos;

x ^ 2- 16y ^ 2 = 0

x² - 16 (x + 3) ² = 0

x²-16 (x² + 6x + 9) = 0

x²-16x²-96x-144 = 0

-15x²-96x-144 = 0

15x² + 96x + 144 = 0

5x² + 32x + 48 = 0

Al factorizar tendremos;

5x + 12 = 0 yx + 4 = 0

x = -12/5 y -4

Obtenga los valores de y;

recuerda que y = x + 3

Si x = -12/5

y = -12/5 + 3

y = 3/5

Si x = -4

y = -4 + 3

y = -1

Por tanto, los valores de y son 3/5 y -1

Answer:

$19.50 I think?

Step-by-step explanation:

use long division if a calculator is not allowed.

Answer:

y = -5x

Step-by-step explanation:

A direction variation equation is of the form

y = kx

The only equation of this form is

y = -5x  where the constant of variation is -5

Answer:

It’s 8.8 so just leave it in that order

Step-by-step explanation:

Answer:8.8

Step-by-step explanation:

Answer: Minnie is 9 years old

Step-by-step explanation:

Eileen = e = 21

Minnie = m

E = 3m - 6

3m - 6 = 21

3m = 27

m = 9

Answer:

9x² + 16y² - 24xy

Step-by-step explanation:

(3x - 4y)²

⇒ (3x)² + (4y)² - 2 (3x) (4y)                                            {(a - b)² = a² + b² - 2ab}

⇒ 3²x² + 4²y² - 2 (12xy)

⇒ 9x² + 16y² - 24xy

Answer:

11/200

Step-by-step explanation:

5.5% = 5.5/100 = 0.055

0.055 1000

———- X ———

1 1000

=55/1000

=11/200

Answer:

$2.50

Step-by-step explanation:

The total amount of money saved will be 50 - 16c

Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

Given are 4 friends who are buying tickets for a concert. The cost to buy one ticket is c dollars. If you buy all the tickets together, there is a discount and the cost is (5c - 12.5) dollars.

When buyed separately, the total cost = $4c

When bought together, the total cost = $4(5c - 12.5)

Money saved = 4c - 4(5c - 12.5) = 4c - 20c + 50 = 50 - 16c

Therefore, the total amount of money saved will be 50 - 16c

To solve more questions on Equation Modelling, visit the link below -

brainly.com/question/14441381

#SPJ5

Answer:

Step-by-step explanation:

You can think of BF in 3 equal parts. 2 parts belong to BH and 1 part goes to HF

3x = 24

x = 24/3

x = 8

BH is twice as long as FH

BH = 2*8 = 16

Answer:

The solution is (-2,2)

Answer:

A) (0,2)

Step-by-step explanation:

0.2A^{1-1}

0.2A^{0} .

0.2\times 1

=0.2