line has equation 3x + y = 15

Find the gradient of the line.

Answers

Answer 1

Answer:

  -3

Step-by-step explanation:

We can add -3x to put the equation into slope-intercept form.

  y = -3x +15

The gradient of the line (slope) is the coefficient of x: -3.

The gradient is -3.


Related Questions

2x+x+x+2y times 3y times y

Answers

Answer:

4x+ 6y^2

Step-by-step explanation:

Which is NOT a line of symmetry?
1
2
3
4
5

Answers

Answer:

where's the line?

Step-by-step explanation:

add a line next time

The quadrilaterals JKLM and PQRS are similar find the length x of PQ

Answers

the fist shape os double the second so you would half 5 to get 2.5 to find the length of PQ
answer = 2.5 please give brainliest if thats okay lol

Answer:

side MJ was 4 then it became 2 at side SP

side ML was 3 then it became 1.5 at side SR

side LK was 3 then it became 1.5 at side RQ

so we will divide 5 by 2 / 5÷2 = 2.5

(WILL GIVE BRAINLIEST)


The points (2, -4), (x,y), A and B all lie on the line in the applet below. Find an equation relating x and y

Answers

Answer:

y=3/4x-5.5 this should be your answer

Step-by-step explanation:

sorry of im wrong

have a wonderfull day!

A rock is thrown into a pool 72 inches deep. The rock sinks at a rate of 4 inches per
second (s). The rock's height (h) above the bottom of the pool is given by the
equation: h = 72 – 4s. After how many seconds will the rock be half way to the
bottom?

Answers

Half of 72 is 36. If you divided 36 by 4, you would get 9. So, s = 9 and means that it takes 9 seconds for the rock to be sunk half way.

PLEASE HELP ME ASAP!!!!

Answers

Answer:

Subtraction property is the answer

Step-by-step explanation:

Mark brainliest please!

Can you help me with this question please!!

Answers

Answer:

Can you help me with this question please!! (D)

Which is greater -1 or 0

Answers

Answer:

0

Step-by-step explanation:

Answer:

The answer would be 0.

Step-by-step explanation:

Any negative number is less than 0 and any positive number is greater than 0.


help please like desperately in need of help

Answers

Answer: 8x^2+2x+3 where ^2 means the 2 is an exponent.

Answer: -8x^2 -2x+13

Step-by-step explanation:

group liked terms

-6x^2-2x^2-2x+5+8

Add numbers 5+8=13

-6^2-2x^2-2x+13

add similiar elements -6x^2-2x^2=-8x^2

-8x^2 -2x+13

How do you prove perpendicular lines are congruent?

Answers

Answer:

step below

Step-by-step explanation:

This is the graph it should be, I suppose you know how to solve it.

BD ⊥ AC       CE ⊥ AB

prove BD = CE

hint: Δ BEC ≅ Δ CDB

Solve each equation.
2y=7(y−2)+4
y =
4x=6−2(2−x)
x =

Answers

Answer:

y=2 and x=1

Step-by-step explanation:

2y=7y-14+4

2y-7y=-14+4

-5y=-10/-5

y=2

4x=6-4+2x

4x-2x=6-4

2x=2/2

x=1

1- Which comparison is NOT true?
A
3.976 > 3.97
B
1.025 < 1.25
С
9.145 > 9.14
D
0.613 > 0.631

Answers

Answer:

D

Step-by-step explanation:

Process of Elimination:

A: 3.976 is greater than 3.97

B: 1.025 is lesser than 1.25

C: 9.145 is greater than 9.14

All of the options checked are true, leaving the answer only to be D.

what is b? 0=-1/5(-1)+b

Answers

Answer:

b= -1/5

Step-by-step explanation:

Though a variable's sign changes when it is multiplied by -1, its absolute value does not. Therefore, we can eliminate the 1:

1/5+b=0

b+1-1/5=0-1/5

b+0/5= 0 -1/5

b=0 -1/5

and you have b= -1/5 as your answer

Find the solution(s) of the system of equations:
y = –x2 + 4x + 5
y = x2 + 2x + 1

a. (–1,2) and (2,17)
b. (1,0) and (–2,9)
c. (1,4) and (2,9)
d. (–1,0) and (2,9)

Answers

The correct solution is D or (-1,0) and (2,9).

The easiest way to find the solutions is to graph the equations then observe the coordinate intersections of each graph :)

The solution to the equation are (2, 9) and (-1, 0)

Given the functions as shown below:

y = –x2 + 4x + 5 y = x2 + 2x + 1

Equating both equations will give;

–x^2 + 4x + 5 = x^2 + 2x + 1

Collect the like terms to have:

–x^2 + 4x + 5 –x^2 - 2x - 1 = 0

-2x^2 + 2x + 4= 0\

2x^2 - 2x - 4  = 0

x^2 - x - 2 =0

Factorize to have:

x^2 - x - 2 =0

x^2 - 2x + x - 2 = 0

x(x-2)+1(x-2) = 0

x = 2 and -1

If x = 2

y = 2^2 + 2(2) + 1

y = 9

If x  = -1

y = (-1)^2 + 2(-1) + 1

y = 1 - 2 + 1

y = 0

Hence the solution to the equation are (2, 9) and (-1, 0)

Learn more on equations here: https://brainly.com/question/16863577

Find the side lengths in the following triangle.

Answers

Answer:

I'm not too sure which one you need, so choose what answer needs to go in the box!

JL= 44.5

JK=23.3

KL=23.3

Step-by-step explanation:

Since JK and KL are equal to eachother, we have to find the missing variable through them. You want to choose one side to have the variable number and the other side for the normal numbers. I can't really explain this next bit, so I'll show the math below:

V N

4x - 10.7 = 2x + 6.3

+10.7. +10.7

_________________

4x = 2x + 17

-2x -2x

2x = 17

So, once there is only one variable number and one normal number left, what do you do? You divide the variable by the number it's worth and carry the division to the normal number.

2x = 17

÷2. ÷2

_______

x = 8.5

So, 8.5 is our number we need. We then just insert it into all the equations to get the numbers.

4 × 8.5 = 34

34 - 10.7 = 23.3

Since JK and KL are equal, they are both 23.3.

5 × 8.5= 42.5

42.5 + 2 = 44.5

JL=44.5

solve one step equation

5x = -15

Answers

Answer:

x=-3

Step-by-step explanation:

This is a one step solution all you do is divide 5 into -15

-15/5 = -3

so -3 = x

x = -3 | 5 multiplied by -3 is equal to -15

The measure is the angles of a triangle are shown in the figure below. Solve for x

Answers

Answer:

30+48+x=180

x=102 ..........

..................

PLEASE CAN SOMEONE HELP ME​

Answers

Answer:

u=ABCDEF

Step-by-step explanation:


If l || m, find the value of x

Answers

Answer:

x = 27°

Step-by-step explanation:

l ║ m    Given

(x + 72) + (3x) = 180°       If parallel line then same-side angles = 180°

4x + 72° = 180°

 4x = 180° - 72°

 4x = 108°

   x = 108°/4

   x = 27°

Find the value of x. 130 Х​

Answers

Answer:

60

Step-by-step explanation:

edge

PLEASE HELPPPP! ANYTHING U CAN ANSWER WOULD BE SOOO GREAT :) (AND NO ITS NOT A VIRUS)

Answers

Answer:

but what if it is a virus?

Step-by-step explanation:

Answer:

isnt oit iron pick

Step-by-step explanation:

Many gas stations give a discount for paying with cash instead of a credit card. William’s local gas station gives a discount of $0.05 per gallon. He fills his car with 20 gallons of gas. How much will William save by paying cash instead of credit card?

Answers

0.05 x 20 = 1
William will be saving $1

The amount that William would save by paying cash instead of credit card is $1

What is a Discount?

This refers to the amount deducted from the value of a certain commodity so that there would be a reduced price for the good.

Hence, given that there is a discount of $0.05 per gallon if you pay with cash

William fills 20 gallons of gas

The amount saved by paying cash by William would be 0.05 * 20 = $1

Read more about discount here:

https://brainly.com/question/23865811

#SPJ2

Complete the table by cubing each positive x-value.

Answers

I think you forgot to add your table

What are the zeros of this function?
A. x=0 and x=-6
B. x=0 and x=5
C. x=0 and x=-5
D. x=2 and x=-6

Answers

Answer:

c i dont know

Step-by-step explanation:

Answer:

Definitely not C

Step-by-step explanation:

The lines graphed below are parallel. The slope of the red line is 3. What is the
slope of the green line?
5
-5
5
O A. - 1 / 1
O B. 3
C.-3

Answers

Answer:

The correct answare should be slope of 3.

Step-by-step explanation:

Well if the red line has the slope of 3 and the green and the red are parrallel than the slope of green should also be 3.

find the quotient 8^6/8^2

Answers

Answer:

4096

Step-by-step explanation:

Help!!!! 100 POINTS (FIRST CORRECT ANSWER GETS BRAINLIEST)

Answers

Answer:

14x+4

Step-by-step explanation:

5x+5x+2x+2x+3+3-1-1

5x+5x+2x+2x=14x

3+3-1-1=4

14x+4




FOOTBALL Tyrell plays running back
and kicks field goals for his team. He
scores 6 points for a touchdown and
3 points for a field goal. In his last
game, he scored 24 points. This can be
represented by the function
6x + 3y = 24. Find the x- and
y-intercepts. Interpret the x- and
y-intercepts.
=

Answers

Answer:

x-intercept(s):  

4,0

y-intercept(s):  

0,8

Step-by-step explanation:

can somebody help me out which one is correct
A , B , C , D ?

Answers

Options A, B and D are true.

please explain to me how to solve for x and y

Answers

Answer:

  (x, y) = (6, 2)

Step-by-step explanation:

You solve for x and y by writing equations that reflect the relation applicable to the given geometry.

The diagonals of a parallelogram bisect each other. That means the halves of each diagonal are equal.

  2x -4 = 4y . . . . . . down diagonal

  x +4 = 7y -4 . . . . . up diagonal

__

We can subtract the first equation from 2 times the second equation to eliminate the x-variable.

  2(x +4) -(2x -4) = 2(7y -4) -(4y)

  2x +8 -2x +4 = 14y -8 -4y . . . . . . eliminate parentheses

  12 = 10y -8 . . . . . . . . . . . . . . . . . collect terms

  20 = 10y . . . . . . . . . . . . . . . . . . add 8

  2 = y . . . . . . . . . . . . . . . . . . . . divide by 10

Substituting into the second equation gives ...

  x +4 = 7(2) -4

  x = 6 . . . . . . . . . . . . subtract 4

The values of x and y are (x, y) = (6, 2).

_____

The lengths of the diagonals are 20 and 16.

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