What would you multiply by to find 120% of a number?

Given:

The equations of lines are

[tex]y=\dfrac{4}{5}x+8[/tex]

[tex]20y+25x=180[/tex]

To find:

The relation between two of lines.

Solution:

The slope intercept form of a line is

[tex]y=mx+b[/tex]

Where, m is slope and b is y-intercept.

We have,

[tex]y=\dfrac{4}{5}x+8[/tex]        ...(i)

[tex]20y+25x=180[/tex]          ...(ii)

Equation (i) can be written as

[tex]20y=-25x+180[/tex]

[tex]y=\dfrac{-25x+180}{20}[/tex]

[tex]y=\dfrac{-25x}{20}+\dfrac{180}{20}[/tex]

[tex]y=\dfrac{-5x}{4}+9[/tex]             ...(iii)

On comparing (i) with slope intercept form, we get

[tex]m_1=\dfrac{4}{5}[/tex]

On comparing (iii) with slope intercept form, we get

[tex]m_2=-\dfrac{5}{4}[/tex]

Now,

[tex]m_1\times m_2=\dfrac{4}{5}\times (-\dfrac{5}{4})[/tex]

[tex]m_1\times m_2=-1[/tex]

The product of slopes of both lines is -1. We know that the product of slopes of two perpendicular lines is -1.

Therefore, the given lines are perpendicular.

Answer:

Step-by-step explanation:

Given

Find

Substitute x with x/3:

Correct choice is C.

Answer:

62

Step-by-step explanation:

the triangles angles always add up to 180 degrees

66+52=118

180-118=62

hope this helps :) have a nice day !!

Answer: the answer is 4

Step-by-step explanation: 3x4 is 12 so 12-(2+4)=6

A proportion which solves for the distance between D and E is: 9/6 = 15/x.

In Geometry, two (2) triangles are said to be similar when the ratio of their corresponding sides are equal and their corresponding angles are in congruence.

By applying the properties of similar triangles, we have this expression:

AB/DE = BC/CD

Substituting the given parameters into the expression, we have;

9/6 = 15/x.

Read more on similar triangles here: https://brainly.com/question/7411945

#SPJ1

Answer:

https://preview.redd.it/t4p9fgd30ag61.gif?format=mp4&s=56295791fda9b2006756326ff4863b84a5c30271

Step-by-step explanation:

Answer:

its B

Step-by-step explanation:

They are all direct variations

Answer:

2x10^-12

Step-by-step explanatiion:

Answer: 3n-6

Step-by-step explanation: You have to use the distributive property. 3 times n is 3n and 3 times -2 is -6.

Answer:

(2, 2)

Step-by-step explanation:

In this case, elimination would be the most efficient means of solving.

Simply, add the two equations, and you will be left with only one variable to solve for. (In this case y) You are then able to take your solution and plug it into an equation and solve for x, therefore giving you their intercept.\

5x + 10y = 30

+

-5x + 15y = 20

(x's cancel) 25y = 50

25y = 50

y = 2

5x + 10(2) = 30

5x + 20 = 30

5x = 10

x = 2

The solution to this equation is (2, 2)

Answer:

x = 5

Step-by-step explanation:

The sum of the angles of a triangle is 180°.

(180 - 18x + 5) + (-1 + 8x) + 46 = 180

⇒ 180 - 18x + 5 - 1 + 8x + 46 = 180

⇒ -10x + 230 = 180

⇒ -10x = -50

⇒ x = 5

Answer:

area of circle=4/3 π4²=67cm²

The value of x is: x = 35.57.

Here, we have,

given that,

from the given diagram, we get,

it is a right angle triangle,

base = x

hypotenuse = 37

and angle = 16°

now, we know that,

cos θ = adjacent / hypotenuse

so, we get,

cos 16° = x/37

The value of cos 16° is equal to the x-coordinate (0.9613).

∴ cos 16° = 0.9613.

=> 0.9613 = x/37

=> x = 35.57

Hence, The value of x is: x = 35.57.

To learn more about trigonometric relations click :

brainly.com/question/14450671

#SPJ6

Answer:

125ft³

Step-by-step explanation:

The volume of a cube is expressed as

s³

Where s = length of each(one) side.

From. The question, s= 5ft

Therefore,

The volume of the cube => (5ft)³

= 125 ft³

Answer:

F

Step-by-step explanation:

Answer:

H

Step-by-step explanation:

Answer:

Step-by-step explanation:

Used photomath witch is an app that takes photos of equations and can solve them or simplify them.

Answer:

i think (-5)

Step-by-step explanation:

i hope its correct

Answer:

120

Step-by-step explanation:

all angles of a triangle add up to 180. 180-15-45= 120.

:D

brainliest pls

Given :

Measure of an angle = 15°

Measure of the second angle = 45°

Let the measure of the third angle be x.

We know that :

▪︎Sum of all angles of a triangle = 180°[angle sum property]

Which means :

[tex] =\tt 15 + 45 + x = 180[/tex]

[tex] =\tt 60 + x = 180[/tex]

[tex] =\tt x = 180 - 60[/tex]

[tex]\hookrightarrow\color{plum}\tt \: x = 120°[/tex]

Thus, the measure of the third angle = 120°

Since the sum of all these angles is equivalent to 180°[15+45+120=180] we can conclude that we have found out the correct measure of the third angle.

Therefore, the correct option is (C) 120

Answer:

72 [tex]ft^{2}[/tex]

Step-by-step explanation: to find the area is length multiplied by width. plug 5 into the equations and you get (9)(8)=72. the unit is feet squared, so your answer is 72[tex]ft^{2}[/tex]

Answer:34.1

Step-by-step explanation:

Answer:

Step-by-step explanation:

#3 D

#4 c

Answer:

1. D

2. C

Step-by-step explanation:

I used a ✨calculator✨

..........the answer is 48 × 10^-8

Answer:

15

Step-by-step explanation:

100/300=.3333333

.33333x45=15

Answer:

Hey there! Therefore, your discount would be 25%.

Step-by-step explanation:

Answer:

6 and -6

|6|=6

|-6|=6

Answer:

-4 / 7

Step-by-step explanation:

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

m = (7 - 3) / (2 - 9)

m = 4 / -7

m = -4 / 7

OR

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

m = (3 - 7) / (9 - 2)

m = -4 / 7

The solution Jada seeks does not require any algebra but can be solved to give; x = 22.

When solving the given equation;

The solution of the equation can be obtained by subtracting 6 from both sides of the equation so that we have;

Therefore, the value of x is; 22

Read more on equation;

https://brainly.com/question/16863577

Answer:

Either B or D

Step-by-step explanation:

Answer:

73/4

Step-by-step explanation:

18x4 = 72. 72 + 1 = 73

Answer: 73/4

Step-by-step explanation:

An improper fraction is simply a fraction in which the numerator is larger than the denominator.  Thus, simply convert 18 into fourths, 72/4, then add 1/4 to get 73/4

Hope it helps <3 :D