A line has a slope of -1/7. It passes
through the points (1,2) and (3,y).
What is the value of y?

Answers

Answer 1

Answer:

y = 12/7

Step-by-step explanation:

Slope = (change in Y) / (change in x)

-1/7 = (y - 2) / (3 - 1)

-1/7 = (y - 2)/2

Cross multiply:  -1(2) = 7(y - 2)

                             -2 = 7y -14

                        -2 + 14 = 7y

                                12  = 7y

                               12/7 = y

Answer 2

Let's find y

[tex]\\ \sf\longmapsto m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\\ \sf\longmapsto \dfrac{-1}{7}=\dfrac{y-2}{3-1}[/tex]

[tex]\\ \sf\longmapsto \dfrac{-1}{7}=\dfrac{y-2}{2}[/tex]

[tex]\\ \sf\longmapsto -2=7y-14[/tex]

[tex]\\ \sf\longmapsto 7y=12[/tex]

[tex]\\ \sf\longmapsto y=12/7[/tex]


Related Questions

find the center and radius of the circle whos equation is (x+5)^2+(y-3)^2=9

Answers

9514 1404 393

Answer:

  center (-5, 3)

  radius 3

Step-by-step explanation:

Compare the given equation to the standard form equation of a circle:

  (x -h)² +(y -k)² = r² . . . . . . circle with center (h, k) and radius r

This shows us that ...

  -h = +5   ⇒   h = -5

  -k = -3   ⇒   k = 3

  r² = 9   ⇒   r = √9 = 3

Then the circle center is (h, k) = (-5, 3), and the radius is r = 3.

PLEASE HELP ITS MATH THANK YOU

Answers

Answer:

he needs 91 packets of seeds

Step-by-step explanation:

5214 divided by 66 gets 79 and then do 7189 divided by 79 to get 91

Help please fast the format is Y-____=_____(x - ____) and i need the actual answer

Answers

9514 1404 393

Answer:

y -195 = 15(x -9)$60

Step-by-step explanation:

The form of the equation you are given is called "point-slope" form. The "slope" in this case is the per-hour fee. The point is (9 h, $195). Point-slope form generally looks like this:

  y -k = m(x -h) . . . . . line with slope m through point (h, k)

Here, you have m=15, (h, k) = (9, 195), so the equation looks like ...

  y -195 = 15(x -9)

__

The "one-time fee" is the cost when hours are zero.

  y -195 = 15(0 -9)

  y = 195 -9(15) = 60 . . . . add 195 to both sides, and evaluate

The one-time fee is $60.

AAA help I need to do this for schoosleldkdk

Answers

Answer:

[tex] \frac{1}{8} [/tex]

Step-by-step explanation:

The total amount of cards is 8, and the stack have 4 even numbers, so the probability is

4/8 Simplify it and

1/2

Now, there are just 6 cars bigger than 6, so:

2/8. Simplify it

1/4

Now you have to multiply the two values:

1/2×1/4 = 1/8

Worth 35 points and Ill give brainliest to corrects answer Please help!

1. Which statement best represents how structure relates to function?
A. The average dog can learn approximately

B. Oppsable thumbs in humans and certain other animales for fine control of gripled objects.

C. Fruit flies live for only 40 to 50 days. D. Robins build nests in trees.

2. who is studying a newly discovered animal, a scientist observes that the animal chance to have one or two Offspring at a time only once or twice per year.

Which type of life history does this animale use?

A. R-Strategy

B. K-Strategy

C. Logistic growth

D. Asexual reproduction ​

Answers

Answer:

The

Answer

for

1

might

be

B

and

answer

for

number

2

is

c

I

think

what is 7/9 divided by 1/3?​

Answers

Answer:

7/3 or 21/9 or 2.3 repeated

Step-by-step explanation:

Answer: 7/3

Step-by-step explanation

[tex]\frac{7}{9}/\frac{1}{3} = \frac{7}{9}*\frac{3}{1}= 21/9=7/3[/tex]

Keep change flip. Keep 7/9 change multiply to divide flip 1/3 to 3.

Jim paid $48 to buy a package of 6 flea treatments for his dog. How much does one treatment cost

Answers

$48/6 = $8/treatment

If Jim paid $48 to buy a package of 6 flea treatments for his dog. Then cost of one treatment is $6.

What is Division?

A division is a process of splitting a specific amount into equal parts.

Given,

Jim paid $48 to buy a package of 6 flea treatments for his dog

We need to find what is the cost a per treatment.

We have to divide split forty eight by six to find the cost of each treatment.

Forty eight divided by six

$48/6

When we divide by six we will get six.

$6

Hence if Jim paid $48 to buy a package of 6 flea treatments for his dog. Then cost of one treatment is $6.

To learn more on Division click:

https://brainly.com/question/21416852

$SPJ2

Find the measure of the third angle in each of the following triangles. The triangles are not drawn to scale.
a.
A triangle has two of its angles labeled 60 degrees and 60 degrees.
b.
A right triangle has the angle between the hypotenuse and one of the legs labeled 30 degrees.
a. The measure of the missing angle is
nothing. ​(Simplify your​ answer.)
b. The measure of the missing angle is
nothing. ​(Simplify your​ answer.)

Answers

Answer:

A. 60 degrees

B. 60 degrees

Step-by-step explanation:

(a)

60 degrees +60 degrees + missing angle  = 180 degrees

(angle sum property of triangle)

missing angle = 180 - 120 = 60 degrees

(b)

90 degrees + 30 degrees =120 degrees +missing angle = 180 degrees

missing angle = 60 degrees

Ausgtin has 1/4 as many cards as mateo. mateo has 1/2 as many cards of amaro. who has the most cards

Answers

Answer:D

Step-by-step explanation:

Amaro would have the most.

36. Is 12 a divisor of 48?

Answers

Yes it would be a divisor

Answer:

yes

Step-by-step explanation:

a divisor is a number that you use to divide another one. 48 divided by 12 is 4. Therefore, 12 is a divisor of 48

What is the value of x? show all your work​

Answers

Answer:

x or AB = 9

Step-by-step explanation:

Use Pythagorean Theorem to solve for missing side.

Pythagorean Theorem: a² + b² = c²

Plug our sides in to get AB² + BC² = AC²

We are solving for AB so we arrange the equation to get:

AB² = AC² - BC²

Solve for AB:

AB² = (√117)² - (6)²

AB² = 81

AB = 9

x or AB = 9

Brihana kayllie works in a chocolate factory. She gets 8.75 per hour. how much money does she earn in 8 hours? 40 hours? Show your work in the box provided.

Answers

Answer:

Briana would get $70 in 8 hours and $350 in 40 hours.

Step-by-step explanation:

Multiply 8.75 by 8 to get $70

Multiply 8.75 by 40 to get $350

Hope this helps!!

Answer:

70$ in 8 hours and 350$ in 40 hours

Step-by-step explanation:

8.75 + 0.25 = 9 X 8 = 72 - 2 = 70

0.25 X 8 = 2

8.75 + 0.25 = 9 X 40 = 360 - 10 = 350

0.25 X 40 = 10

-4(7 + 4x) = 42 - 6x

Answers

Step-by-step explanation:

You use the formula BODMAS and then you simply the brackets first

(7+4x)=11x

And then you group using like terms which is

-4 - 42 +11x - 6x and then you get ur answer

A charter fishing company buys a new boat for $224,000 and assumes that it will have a trade-in value of $115,200 after 16 years.
a. Find a linear model for the depreciated value V of the boat t years
after it was purchased.
b. What is the depreciated value of the boat after 10 years?
c. When will the depreciated value fall below $100,000?
d. Graph V for 0 ≤ t ≤ 30 and illustrate the answers from (b) and
(c) on the graph.

Answers

First, according to the information, we build a linear model, and then, the model is used to find the information asked.

a) The linear model is:

[tex]V(t) = 224000 - 6800t[/tex]

b) The depreciated value of the boat after 10 years is of $156,000.

c) The depreciated value falls below $100,000 after 18.24 years.

d) The sketch is given at the end of the answer.

Item a:

The initial value is of $224,000, thus, the y-intercept of the linear function is of [tex]b = 224000[/tex].The value decayed to $115,200 in 16 years, thus, the slope of the linear function is:

[tex]m = \frac{115200 - 224000}{16} = -6800[/tex]

Then, the linear model is:

[tex]V(t) = 224000 - 6800t[/tex]

Item b:

The value after 10 years is V(10), so:

[tex]V(10) = 224000 - 6800(10) = 156000[/tex]

Then, the depreciated value of the boat after 10 years is of $156,000.

Item c:

This is t for which: V(t) = 100000. So

[tex]V(t) = 224000 - 6800t[/tex]

[tex]100000 = 224000 - 6800t[/tex]

[tex]6800t = 224000 - 100000[/tex]

[tex]6800t = 124000[/tex]

[tex]t = \frac{124000}{6800}[/tex]

[tex]t = 18.24[/tex]

The depreciated value falls below $100,000 after 18.24 years.

Item d:

The sketch is appended at the end of this answer.

A similar problem is given at https://brainly.com/question/24978772

The graph below shows four straight lines, A, B, C, and D: graph of line A going through ordered pairs negative 2, negative 3 and 2, 5. Graph of line B going through ordered pairs negative 2, negative 4 and 2, 4. Graph of line C going through ordered pairs negative 2, negative 5 and 3, 5. Graph of line D going through ordered pairs 0, negative 4 and 4, 4 Which line is represented by the function f(x) = 2x + 1? (1 point) Group of answer choices Line A Line B Line C Line D

Answers

Answer:

Line A is represented by the function f(x) = 2x + 1.

Step-by-step explanation:

page. 1.06 lb of lettuce for 2.05 what does lettuce cost per pound rounded to the nearest cent no links please just answer the question​

Answers

Answer:

I don't think anyone understands the question

Answer:

$1.93 per pound

Step-by-step explanation:

Use ratios to solve:

1.06 lb → $2.05 1 lb → x

x = 2.05/1.06 = $1.93 per pound

Find the unit rates (pages per day) for Deon and Emily. Who read faster?


Deon: 36 pages in 3 days. StartFraction 36 pages Over 3 days EndFraction = Question mark pages per day. Emily: 45 pages in 5 days. StartFraction 45 pages Over 5 days EndFraction = question mark pages per day.

Answers

Answer:

Deon

Step-by-step explanation:

Deon-12 ppd

Emily-9 ppd

Deon reads more pages per day

Answer:

Deon read  3 more  pages per day than Emily.

How many bagels can u make in 18 hours

Answers

Answer:

4  but i'm bad at cooking cause i'm 15 so

Step-by-step explanation:

Finally, suppose you decide not to finance (get a loan for) the car and to
wait two years to save up money in addition to the $4,000 you already
have saved for the car.
How much money would you have to save each month in order to
purchase this car without any financing (loan) at the end of two years?
Round your answer to the nearest cent.

Answers

Supposing a cost of $30,000, and using proportions, it is found that you would have to save $1,083.30 each month.

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

We suppose a cost of $30,000.You already have $4,000 saved.30 - 4 = 26, thus, you would need to save $26,000 in 2 years = 24 months.How much per month?

We can solve it using proportions, by the following rule of three:

1 month - $x

24 months - $26,000

Applying cross multiplication:

[tex]24x = 26000[/tex]

[tex]x = \frac{26000}{24}[/tex]

[tex]x = 1083.3[/tex]

You would have to save $1,083.30 each month.

A similar problem is given at https://brainly.com/question/24112433

Which is f(–3) for the quadratic function graphed?

–9
–3
0
9

Answers

Answer:

-9

Step-by-step explanation:

The answer is -9 since it is seeking for the point at x=-3.

Check all solutions to the equation. If there are no solutions, check "None."
&x=0


Someone please help ASAP!!

Answers

Answer:

I think 0 is the only one that works here.

Step-by-step explanation:

Answer:

the only option is 0

Step-by-step explanation:

Greatest common factor of 76 and 675

Answers

the greatest common factor of 76 and 675 is 1

what is the square root of ten

Answers

Answer:

3.16227766017 is the answer

Answer: 3.16227766017

Step-by-step explanation:

Or you could round and get 3.2 or 3.16

-8/7 + (-2/3)
HELPP Mee

Answers

Step-by-step explanation:

-(38/21)

that is the answer

Answer:

-38/21, or 1 17/21

Step-by-step explanation:

To add, we need to change the denominators to be the same. The least common denominator is 21. -8/7 is equal -24/21, and -2/3 is equal to -14/21. If we add these we get -38/21, or 1 17/21.

What is the sum of 1 and 2?

Answers

Answer:

3

Step-by-step explanation:

[tex]1 + 2 = 3[/tex]

answer= 3

write an equation in slope intercept form for the line with slope -1/5 and y intercept 8. then graph the line​

Answers

Answer:

y = -1/5x + 8

Step-by-step explanation:

Mariel and Liu are running a long-distance race. Mariel runs at a rate of 5.4 m/s, and Liu runs at a rate of 7.6 m/s. If Mariel has a 20 m head start, how long will it take for Liu to catch Mariel?

Answers

We have that, how long it will take for Liu to catch Mariel is mathematically given as

t=3.076s

From the question we are told

Mariel and Liu are running a long-distance race. Mariel runs at a rate of 5.4 m/s, and Liu runs at a rate of 7.6 m/s. If Mariel has a 20 m head start, how long will it take for Liu to catch Mariel?

Generally the equation for the Average speed is  mathematically given as

[tex]v_a=\frac{5.4+7.6}{2}\\\\V_a=6.5m/s[/tex]

Therefore

How long it will take for Liu to catch Mariel is mathematically given as

[tex]t=\frac{20}{6.5}[/tex]

t=3.076s

For more information on this visit

https://brainly.com/question/23379286

hepe me please on these​

Answers

Answer:

Note that I put an answer for everything not just the ones you left blank.

(+14) + (+9) = +23

(+6) + (-13) = -7

(-4) + (+1) = -3

(-6) + (+10) = +4

(+14) + (+4) = +18

(0) + (+15) = +15

(0) + (-9) = -9

(+1) + (+24) = +25

(+3) + (-14) = -11

(-24) + (+14) = -10

(+17) + (+14) = +31

(+23) + (+14) = +37

(+14) + (+9) = +23

(+21) + (+21) = +42

(-3) + (+4) = +1

Step-by-step explanation:

(Just a friendly heads-up, you don't have to keep putting the + sign in front of the positive numbers. Numbers without any sign, automatically mean they're positive. It's the negative signs that you need to place a sign.)

Hope this helped :)

Find the average rate of change of f(x)=4x^2-6 on interval [1,a]​

Answers

9514 1404 393

Answer:

  4a +4

Step-by-step explanation:

The average rate of change of f(x) on the interval is ...

  (f(a) -f(1))/(a -1)

  = ((4a² -6) -(4(1)² -6))/(a -1) = (4a² -4)/(a -1)

  = 4(a² -1)/(a -1) = 4(a +1) = 4a +4

The average rate of change on the interval is 4a +4.

Solve pls brainliest!

answer both i need helpp!

Answers

Answer:

1st im not sure yet 2nd A. -4 B. 4

Step-by-step explanation:

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