Use an equation to find the value of k so that the line passing through (−4,k) and (6,−7) has a slope of −15.

Answers

Answer 1

Answer:

k = 143

Step-by-step explanation:

Using the slope formula

(k- -7)/(-4-6) =-15

(k+7)/(-10) = -15

k+7 =-15*-10

k+7 = 150

Subtract 7

k+7-7 = 150-7

k = 143


Related Questions

the midpoint of (3 x, -2) and (-4, 5y) is (1,4). find x, -y​

Answers

Answer:

(x,-y): (2,-2)

Step-by-step explanation:

M=(x+x)/2,(y+y)/2

Given (1,4)=

[tex] \frac{3x - 4}{2} [/tex]

This implies:

[tex]1 = \frac{3x - 4}{2} [/tex]

[tex]3x - 4 = 2 \\ 3x = 2 + 4 \\ \frac{3x }{3} = \frac{6}{3} \\ x = 2[/tex]

In a similar way,

[tex]4 = \frac{ - 2 + 5y}{2} \\ - 2 + 5y = 8 \\ 5y = 10 \\ y = 2[/tex]

The question demanded (x,-y)

Hence(2,-2) is the answer

Jorge had 1/2 pizza left in the fridge. At breakfast he ate 1/3 of it. What fraction of the original pizza does he have left for lunch

Answers

Answer:

1\2 of 8=4

so, 4

4:1\2=

2 so he has 2 slices left

Step-by-step explanation:

What is the distance formula and how do i do it

Answers

Answer: What is the distance formula is that it's the formula used in Mathematics such as Pre-Algebra, Algebra 1, Geometry, Algebra 2, Trigonometry, and Pre-Calculus, also Calculus to help you find the distance between 2 points in a coordinate plane or the length of a segment. How you do the distance formula is you subtract the 2nd x coordinate by the 1st one, next you add the 2nd y coordinate to the 1st one, then the answer you get you evaluate them using the exponent of 2, lastly you add that answer and square root the answer you get to the approximate or closest decimal or whole number.

In plane ABC the measure of angle A equals 42° the measure of angle B is five times the measure of angle C find the measure of angle B and the measure of angle C.

Answers

Step-by-step explanation:

I think what is meant in the triangle ABC we have the three angles.

the sum of all angles in a triangle is airways 180 degrees.

so,

180 = A + B + C

180 = 42 + B + C

now, we know also that

B = 5×C

so, we can use that above

180 = 42 + 5×C + C

138 = 6×C

C = 138/6 = 23 degrees

B = 5×C = 5×23 = 115 degrees

At a sporting goods store, the price of a bicycle is $650. During a sale, this price is marked down 45%. What is the sale price of the bicycle? Enter your answer in the box.​

Answers

Answer:

292.5

Step-by-step explanation:

calculations

45 percent of 650 Is 292.5

Maggie drew triangle and then triangle . Triangle is congruent to triangle only if ∠ is equal to what value?

Include explanation!!

Answers

Answer:

Angle ABE = 58

Step-by-step explanation:

This would fulfill the AAA theorem, or 3 angles needing to be congruent. We got 58 by subtracting 89 and 62 from 180, then multiplying that answer by 2 (because it occupies both triangles).

What is the role of parentheses in expressions containing exponents?

Answers

Step-by-step explanation:

the quantity inside the parentheses is being multiplied by itself the number of times the outside exponent

Nina hired a car in Italy.
The cost of hiring the car was 440 euro.

The exchange rate is 1 euro = £0.8.

Work out the cost of hiring the car in pounds.

Answers

The answer is 4.5 :)

This is my little sister's homework and I don’t get it help me

Answers

Answer:

Step-by-step explanation:

25 for blue

42 for red

Answer:squere is 42 and triangle id 25

Step-by-step explanation:I now that squere 42 becuse if you add 42 plus 30 equels 72 and i now the triangle is 25 becuse 25 plus 25 equels 50

help my little brother please!!​

Answers

Answer: The answer should be D

The answer is c. Bbbh

Find the slope between:
(4,5)
(3,5)

Answers

Answer:

If a line goes through both points, the slope of that line would be [tex]0[/tex].

Step-by-step explanation:

The slope of a line is equal to the ratio between the vertical change of this line "rise" and the corresponding horizontal change "run":

[tex]\begin{aligned}\text{slope} &= \frac{\text{rise}}{\text{run}}\end{aligned}[/tex].

If a non-vertical line goes through two distinct points [tex](x_{0},\, y_{0})[/tex] and [tex](x_{1},\, y_{1})[/tex] where [tex]x_{0} \ne x_{1}[/tex], the vertical change (rise) would be [tex](y_{1} - y_{0})[/tex]. The corresponding horizontal change would be [tex](x_{1} - x_{0})[/tex]. Thus, the slope of that line would be:

[tex]\begin{aligned}\text{slope} &= \frac{\text{rise}}{\text{run}} \\ &= \frac{y_{1} - y_{0}}{x_{1} - x_{0}}\end{aligned}[/tex].

In this question, [tex]x_{0} = 4[/tex] and [tex]y_{0} = 5[/tex] for the first point, whereas [tex]x_{1} = 3[/tex] and [tex]y_{1} = 5[/tex] for the second point.

The rise (vertical change) of this line from the first point to the second would be [tex](y_{1} - y_{0}) = 5 - 5 = 0[/tex]. The corresponding run (horizontal change) would be [tex](x_{1} - x_{0}) = 3 - 4 = -1[/tex].

Thus, the slope of this line would be:

[tex]\begin{aligned}\text{slope} &= \frac{\text{rise}}{\text{run}} \\ &= \frac{y_{1} - y_{0}}{x_{1} - x_{0}} \\ &= \frac{5 - 5}{3 - 4} \\&= \frac{0}{-1} \\ &= 0\end{aligned}[/tex].

In other words, the slope of this line is [tex]0[/tex]. Geometrically, a slope with a slope of [tex]0\![/tex] would be horizontal. The vertical coordinate of all points on such line would be the same ([tex]5[/tex] for points on the line in this question.)

Yolanda made $231 for 11 hours of work. At the same rate, how many hours would she have to work to make $168?

Answers

Answer:

8 hours

Step-by-step explanation:

231/11=$21 an hr

168/21=8hrs


Identify the number that does not belong with the other three. Explain your reasoning 501
50
50

Answers

501? Because the others are the same number 50….


.
Base Salary: $48,000
Applications: 910
Fee: $1.75 per application

what’s the total earning

Answers

Answer:

$49,592.50

Step-by-step explanation:

First, to find the total fee of application you times 910 by $1.75 which will give you

910 × 1.75 = 1592.5

Then you add 48,000 with 1,592.5

which will give you an answer of

48,000 + 1,592.5 = $49,592.50

:)

I will give brainliest

Answers

Answer:

y=-1/2x+2

Step-by-step explanation:

2 = 0 +b

2=b

y=-1/2x+2

Answer:

y = -1/2x + 2

Step-by-step explanation:

Follow the y = mx + b. B stands for the y-intercept, which is 2 in this case. M stands for the slope, which is the constant -1/2. Pls brainliest i want to level up ty!!!!!

when a force is applied to an object its, ________, the object may ____________________.

Answers

Answer:

merry Christmas to you advance

Please look at the image and don’t send me links that I will have to download apps on it or viruses

Answers

this isn’t mathematics. try going to biology to get a fastest answer.
all I know is that B. Goes with 13.

17) If you pick a card at random from a well shuffled deck, what is the probability that you get a face card or a
spade?

Answers

Answer:ñññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññññ

Step-by-step explanation:

Step-by-step explanation:

deck means an amount of number

but lemme use dozen as an exmaple instead of deck

dozen means 12

so that would be 2/12

Uhmmmm please help lol

Answers

Answer:

x equals 6

Step-by-step explanation:

x equals 6 ummm I dont know what to put after this because its telling me it has to be 20 characters long so here ya go

What is the product when 20 3 is multiplied with 9 25 ?

Answers

Answer:

187.775

Step-by-step explanation:

20.3×9.25=

187.775

HELP ASAP!!!!!!
I need help with the slope

Answers

Answer:

2/3

Step-by-step explanation:

L,U,N,C,H,L,U,N,C,H,L,U. Is a pattern that continues to infinity.

Answers

Answer:

Yes

Step-by-step explanation:

because it is going to keep saying LUNCH

a tube of toothpaste is marked 3.92 for 8 ounces what is the price per ounce

Answers

Answer:

$0.49

Step-by-step explanation:

answer: $0.49

explanation: 3.92/8 = .49

Can someone please give me the (Answers) to this? ... please ...

Answers

Answer:

1.  Consecutive Interior

2. Corresponding

3. Alternate Exterior

4. 111°

5. 80°

6. 110°

what are the values of each missing angle?

Answers

Answer:

Step-by-step explanation:

m∠ 1 = 104°

m∠ 2 = 79°

m∠ 3 = 65°

m∠ 4 = 45°

m∠ 5 = 73°

m∠ 6 = 147°

3.6.PS-7 Question Help 0 Edward deposited $9,500 into a savings account 5 years ago. The simple interest rate is 2%. How much money did Edward earn in interest?​

Answers

[tex]~~~~~~ \textit{Simple Interest Earned}\\\\I = Prt\qquad\begin{cases}I=\textit{interest earned}\\P=\textit{original amount deposited}\dotfill & \$9500\\r=rate\to 2\%\to \frac{2}{100}\dotfill &0.02\\t=years\dotfill &5\end{cases}\\\\\\I = (9500)(0.02)(5)\implies \boxed{I = 950}[/tex]

Rashid solves the following system of equations using the elimination method.

6x−5y=−31

5x+3y=10

What value does he correctly determine for x?

Enter you answer in the box. x =

Answers

Answer:

X = -1 & and for some additional information Y = -5

Step-by-step explanation:

6 x (-1) = (-6)

5 x (-5) = (-25)

(-6) - (-25) = (-31)

_____________

5 x (-1) = (-5)

3 x (-5) = (-15)

(-5) + (-15) = 10

Answer:

  x = -1

Step-by-step explanation:

Rashid may have used elimination to solve the problem, but we can use any method we like to find the correct value of x. One method we like is graphing. The attached graph shows the solution is (x, y) = (-1, 5), so we know Rashid found ...

  x = -1

__

If we go down Rashid's path, we multiply the first equation by 3 and add that to the second equation multiplied by 5. (This choice of multipliers results in a positive coefficient for x.)

  3(6x -5y) +5(5x +3y) = 3(-31) +5(10)

  18x -15y +25x +15y = -93 +50 . . . . . . eliminate parentheses

  43x = -43 . . . . . . . . . . . . . . . . . simplify

  x = -1 . . . . . . . . . . . . . . . . . divide by 43

Find the surface area of a cube
with side length 8.5 cm.

Answers

Answer:   433.5 square cm

=========================================================

Explanation:

A cube has 6 identical faces, all of which are squares.

Each square has a side length of 8.5 cm, so its area is (8.5)^2 = 72.25 sq cm.

The overall surface area, aka the area of all 6 faces combined, is 6*72.25 = 433.5 square cm

Answer:

A=433.5cm²

Step-by-step explanation:

A=6a2=6·8.52=433.5cm²

question 6, almost done promise

Answers

A. Driving in the city

-
S2x+3y=-12
(4x-4y=4

Answers

Answer:

I'll assume "S2x+3y=-12" is actually 2x+3y=-12 and that the question is to solve for x and y.

x = -(9/5)

y = -(14/5)

Step-by-step explanation:

2x+3y=-12

4x-4y=4

---

2x+3y=-12

8x+12y=-48  [Multiply the 1st equation by 4]

12x-12y=12   [Multiply the second equation by 3]

20x = -36     [Now we can add the two equations to remoce the y term]

x = -(36/20)  

x = -(9/5)       [The value for x]

====

2x+3y=-12        [Take either equation and s=use x=-(9/5) to find y]

2(-9/5)+3y=-12  

-(18/5) + 3y = -12

+ 3y = -12 + (18/5)

y = -4 + (6/5)

y = -(20/5)+(6/5)

y = -(14/5)          [This is the value of y that will work for both equations]

These equations both have the point (-9/5, -14/5) in common:  they intersect here.

This problem can also be solved by graphing each equation and finding the point they inersect on the graph (attached).

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