can somebody please help

1.4  is the value of r in the equation given.

A mathematical statement known as an equation is made up of two expressions joined together by the equal sign. For solving equations The abbreviation PEMDAS is used to indicate the sequence of steps to be taken when resolving expressions with multiple operations. P is for "parentheses," E is for "exponents," M is for "multiplication," D is for division, A is for addition, and S is for subtraction.

In the given equation,

10r -1.5 = 12.5

Simplifying using PEMDAS

add 1.5 on both sides

10r = 14

divide by 10 into both sides

r = 14/10 = 1.4

Therefore, The value of r in the given equation is 1.4.

Learn more about equations here:

https://brainly.com/question/29657983

#SPJ2

Answer:

2

Step-by-step explanation:

How many 1/4 cups fit in a 1/2 cup?

This is a division problem.

We need to divide 1/2 by 1/4.

1/2 ÷ 1/4 =

= 1/2 × 4/1

= 4/2

= 2

Answer: 2

Answer:

517 birds

Step-by-step explanation:

Subtract 234 from 751, to find how many birds landed on the lake overnight.

Answer: -6x

Step-by-step explanation:

Just subtract the coefficients:

The coefficient of 10x is 10

The coefficient of 16x is 16

now do ten minus 16 (TIP: if you don't really like negative numbers, then an easy way of subtracting 10-16 is 16-10=6, then add the negative sign to 6; -6)

10 - 16 = -6

Now put the x back: -6 = -6x

The correct answer is -6x

Answer:

NO

Step-by-step explanation:

You need x on one side of the equation.

3+4x ≤ 2(1+2x)

3+4x ≤ 2+4x

  -4x       -4x

3 ≤ 2

Since there is no x value there is no solution

Therefore, percentage of those who opened the email ,  clicked a link is  28.57%

A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100. The proportion therefore refers to a component per hundred. Per 100 is what the word percent means. The letter "%" stands for it.

Here,

Let the amount of people  receiving your email is x

The amount of people receiving your email opened it is 7%

7/100 * x = 0.07x

The amount of people receiving your email clicked a link is 2%

So,

2/100 * x = 0.02x

Therefore,

percent of those who opened the email ,  clicked a link is

=> 0.02x/0.07x * 100

=> 2/7*100 = 28.57%

Therefore, percentage of those who opened the email ,  clicked a link is  28.57%

To know more about percentage , visit

https://brainly.com/question/12715980

#SPJ4

Answer: 0.4

Step-by-step explanation:

The question is asking for the probability to own a dog.

40% own a dog.

If you add all of the percentages you get 100%

40/100

=0.4

The probability is 0.4 times to randomly select a resident that only owns a dog.

Step-by-step explanation:

as you wrote correctly, proportional relationships are in the form

y = mx

that means the line has to go through the origin (0, 0). otherwise it is in the form

y = mx + b

which is still linear but not proportional.

1a.

the rate of change is between 2 points A and B

(Yb - Ya)/(b - a)

in our case e.g. (4, 5.52) and (8, 11.04)

(11.04 - 5.52)/(8 - 4) = 5.52 / 4 = 1.38

when we use other points we get the same result. we see e.g. that when we double x (pounds), then also y (cost) is doubled.

the rate of change is 1.38.

this is also called the slope of the line.

b.

as mentioned in a., when we multiply x by a factor, then y is multiplied by the same factor. it also means that the function contains (0, 0) : for 0 pounds we pay $0.

c.

y = 1.38x

2a.

the slope is (as it is the same as the rate of change) the ratio of (y coordinate change / x coordinate change) when going from one point on the line to another.

we try to find points with integer coordinates to do that.

I see e.g. (3, 4) and (6, 8).

x changes by +3 (from 3 to 6).

y changes by +4 (from 4 to 8).

so, the slope is +4/+3 = 4/3.

b.

the simplest indicator is that the line goes through the origin (0, 0), which it does.

c.

y = (4/3)x

Answer: y=7x-23

Step-by-step explanation:

y-y1=m(x-x1)

Plug them in:

-2-12=m(-2-5)

-14=m(-7)

m=7

y=7x+b

Plug in a coordinate:

12=7(5)+b

12=35+b

-23=b

y=7x-23

The new coordinate of point (5,-4) after dilation by a scale factor of 33 centered at the origin is (165,-132)(165,132)

You must specify the extent of the shape's enlargement when describing one.

The scale factor is the ratio of two dimensions such that one figure is large and another is small.

Given the coordinate (5,-4),(5,-4)

If we apply a scale factor by 33 on any general coordinate (x,y)

Then,

x → 33x and y → 33y

Similarly

5 → 33(5) = 165

-4 → 33(-4) = -132

So the new coordinate will be (165,-132)(165,-132)

Same step apply once more for (5,-4) the coordinate of other is same

Hence "The new coordinate of point (5,-4)(5,-4) after dilation by a scale factor of 33 centered at the origin is (165,-132),(165,-132)

To learn more about scale factor refer to :

https://brainly.com/question/2826496

#SPJ1

Answer:

9 - 24x

Step-by-step explanation:

When using the distributive property, the number outside the parentheses (12) is "distributed" to each of the values inside the parentheses. In other words, 12 will be multiplied by 3/4 and 2x:

12(3/4 - 2x)

12(3/4) - 12(2x) <----- so now we successfully got rid of the parenthesis. Next, simplify

12(3/4) = 9

12(2x) = 24x

9 - 24x <----this is the final answer since it can't be simplified further

A sector is a part of a circle that is bounded by an arc and two radii. Thus the area of the lawn is Option D. 589.

A circle is a figure that is bounded by curved lines called circumference. Some parts of a circle are radius, sector, diameter, chord, circumference, arc etc.

A sector can be defined as a part of a circle which is bounded by two radii and an arc.

The area of a sector can be determined by;

Area of a sector = (θ/360) *r²

where: θ is the measure of the internal angle of the sector        

   r is the radius of the sector

In the given question, it can be observed that the area of the lawn that receives water from the sprinkler has the shape of a sector.

So that:

Area of the lawn = (300/360)*22/7 * 15²

                   = 589.2857

Area of the lawn = 589²

Learn more about the area of a sector of a circle at https://brainly.com/question/22972014

#SPJ1

Answer:

q=82

Step-by-step explanation:

The line is equal to 180 degrees, and we have three angles and two have numbers, so this will be easy.

Add 58+40 to get 98, now subtract 98 from 180.

180-98=82

The required area of the polygons is given as 100 ft², 9 ft², 16 ft², and 64 ft².

Given that,
The dimensions of this polygon are shown in feet (ft). 10ft/3ft/4 ft/8 ft. The area, in square feet, of the polygon is to be determined.

A polygon is defined as a geometric shape that is composed of 3 or more sides these sides are equal in length, and an equal measure of angle at the vertex,

Examples of polygons, equilateral triangles, squares, pentagons etc

Here,
Assumed that all the polygons are square,
The area of the square is given as (side)².
1,
Side = 10 ft
Area of the square = [10 ft]² = 100 ft²

Similarly,
For side 3 areas is 9 ft²,

For side 4 areas is 16 ft²,

For side 8 areas is 64 ft²,

Thus, the required area of the polygons is given as 100 ft², 9 ft², 16 ft², and 64 ft².

Learn more about polygon here:

https://brainly.com/question/24464711
#SPJ1

Perpendicular lines have slopes that are opposite signs and reciprocals.

Since the line y = -1/4x + 10 has a slope of -1/4, the slope of the perpendicular line will be + 4/1 or 4.  So any line with a slope of 4 will be perpendicular to  y = -1/4x + 10.

This means A and D will be your answers.

a) The Volume of space that is not occupied is; 13.80 in³

b) The length, are and volume have distinct final units.

c) The Volume of the composite shape is the sum of the Volume of Cone, Volume of Cylinder and  Volume of Hemisphere

a) Tennis ball is usually considered to be a sphere. The formula for volume of sphere is;

V = ⁴/₃πr³

where r is radius.

Since diameter = 2.6 inches, then radius; r = 2.6/2 = 1.3 inches

Thus;

Volume of each tennis ball;

V = ⁴/₃π(1.3)³

For the three tennis balls;

V₃ = 3(⁴/₃π(1.3)³)

V₃ = 8.788π

Volume of the cylindrical container = πr²h

h is height = 3(2.6) = 7.8 inches

V_cyl = π(1.3² * 7.8)

V_cyl = 13.182π

Volume of space not occupied = 13.182π - 8.788π

Volume of space not occupied = 13.80 in³

b) For length, the unit will be singular

For Area, the unit will be squared

For Volume, the unit will be cubed

c) There are three objects that make up the composite object namely; Cone, Cylinder, hemisphere. Thus;

Volume of composite shape = Volume of Cone + Volume of Cylinder + Volume of Hemisphere

Read more about Volume of composite object at; https://brainly.com/question/17203631

#SPJ1

The graph of the absolute function g(x) = -|x + 3| - 4 has vertex at (-3, -4) and touches the y -intercept at (0, -7)

The graph of an absolute value function is called an absolute value graph. The absolute value graph depicts the distance of a number from the origin. The graph of the absolute value function is symmetric about the y -axis. The graph of the absolute value function makes a right angle at the origin.

In this problem the function given is

g(x) = -|x + 3| - 4

To graph this function, we can use a graphing calculator which will enable us to plot all points accurately.

The graph touches the y -axis at (0, -7)

Learn more on graph of absolute function here;

https://brainly.com/question/22214776

#SPJ1

The width of area model is 2x units

Area is the entire amount of space occupied by the shape of an object or a flat (2-D) surface.

According to the given information :

The given expression is [tex]6x^{2}+106x[/tex]

We need to find the width of area model , so The above expression represents the area of rectangle A

By making the factors of the above expression

A = [tex]6x^{2}+106x[/tex]

  = [tex]2x( 3x + 53 )[/tex]

Area of rectangle is defined as

A = l × b

where l is length and b is width

In the above expression

b = 2x

l = 3x + 53

So , The width of area model is 2x units

To know more about Area

https://brainly.com/question/20293447

#SPJ4

To rotate a triangle 180° about the origin counterclockwise, we can take each vertex of the triangle and reflect it across the origin. This will produce a new set of coordinates for each vertex that is the same distance from the origin as the original, but on the opposite side of the origin.

For example, the vertex F has coordinates (6, 3). If we reflect this point across the origin, we get the new point (-6, -3). Similarly, the vertex G has coordinates (3, 4), which become (-3, -4) when reflected across the origin, and the vertex H has coordinates (1, 7), which become (-1, -7) when reflected across the origin.

Therefore, the coordinates of each vertex of the triangle after rotating it 180° about the origin counterclockwise are as follows:

Note: When rotating a point about the origin, the direction of rotation (clockwise or counterclockwise) is important. If we had rotated the triangle 180° about the origin clockwise instead of counterclockwise, the new coordinates of each vertex would have been the same as the original, since the triangle would be reflected across the origin and end up in the same position as it started.

Please give me brainliest for more high quality answers! - longstretch

Answer:

I use desmos!

Step-by-step explanation:

Answer:

Based on my estimates, Thy answer shall be the letter known as C

Answer:

A = 12cm^2 B = 18cm^2 C = 54cm^2

Step-by-step explanation:

area = side 1 x side 2

Answer:

x < 3 or x ≥ 11

Step-by-step explanation:

(-∞, 3) or [11, ∞)

Step-by-step explanation:

subtract 4 from each side

2x < 6 .     or .         3x  ≥ 33

x < 3 or x ≥ 11

make sure you have an OPEN DOT at 3 pointing to negative infinity and a CLOSED DOT at 11 pointing to positive infinity.  

89.086 milliliters of juice will be in a glass with 7 ice cubes.

A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.

Variables are the name given to these symbols because they lack set values.

In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.

Given:

Equation of line: y = -29 202x + 293.5.

So, for 7 ice cubes i.e., x= 7

The amount of juice is

y= -29.202 (7)+ 293.5

y= -204.414+ 293.5

y= 89.086

Hence, the juice is 89.086 milliliters

learn more about Algebra here:

https://brainly.com/question/24875240

#SPJ1

Answer:

Below

Step-by-step explanation:

The slope of the given line , m = 4/5

  perpendicular slope is  - 1/m = - 5/4

The required simplified value of the given expression is 120.

Given that the expression as;

(50 + 30) + 40.

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here, we have;

= (50 + 30) + 40

Now, using associative property, in parenthesis 50 + 30 become 80.

= 80 + 40

Then using associative property, 80 + 40 become 120

= 120

Thus, the simplified value is 120.

Learn more about simplification here:

brainly.com/question/12501526

#SPJ1

Answer:sd

Step-by-step explanation:

The equations that have the same solution as 2.3p – 10.1 = 6.5p – 4 – 0.01p are 2.3p – 10.1 = 6.49p – 4 and 230p – 1010 = 650p – 400 – p

The equation is given as

2.3p – 10.1 = 6.5p – 4 – 0.01p

Evaluate the like terms on the right-hand side

So, we have the following representation

2.3p – 10.1 = 6.49p – 4

The above equation is an equivalent equation of the given equation

Multiply through the equation by 100

So, we have:

100(2.3p – 10.1 = 6.5p – 4 – 0.01p)

Evaluate

230p – 1010 = 650p – 400 – p

The above equation is also an equivalent equation of the given equation

Hence, the equations with the same solution are represented above

Read more about equivalent equations at

brainly.com/question/2972832

#SPJ1

The volume of the liquid in the conical flask is 980 π cm³

What is a Cone?

A cone is a three-dimensional shape in geometry that narrows smoothly from a flat base (usually circular base) to a point(which forms an axis to the centre of base) called the apex or vertex.

The volume of a cone is given by the equation

Volume of Cone = ( 1/3 ) πr²h

where r is the radius of the cone

h is the height of the cone

Given data ,

Let the two cones be A and B

Now , the smaller cone be A

The larger cone be B

The radius of the smaller cone is r = 8 cm

The height of the smaller cone is h = 20 cm

Now , the volume of the smaller cone V = ( 1/3 ) πr²h

Substituting the values in the equation , we get

Volume of cone A = ( 1/3 ) πr²h

Volume of cone A = ( 1/3 ) π x 8 x 8 x 20

Volume of cone A = 426.67 π cm³

Now ,

The larger flask is filled with height H = 20 cm

The radius of the larger cone is R = 14 cm

The height of the larger cone is H = 15 cm

Now , the volume of the smaller cone V = ( 1/3 ) πR²H

Substituting the values in the equation , we get

Volume of cone B = ( 1/3 ) πR²H

Volume of cone B = ( 1/3 ) π x 14 x 14 x 15

Volume of cone B = 980 π cm³

Therefore , the volume of the larger cone B is 980 π cm³

Hence , The volume of the liquid in the conical flask is 980 π cm³

To learn more about cone click :

https://brainly.com/question/1984638

#SPJ1

Answer:

5 y (2 y^4 + 6 y^2 - 3)

Step-by-step explanation:

The given input is 10y^5+30y^3-15y

10y^5+30y^3-15y has factors i.e 5 y (2 y^4 + 6 y^2 - 3)

By verifying each polynomial factor we get the GCF i.e common factor of the polynomial is 5 y (2 y^4 + 6 y^2 - 3) and simplified as 10 y^5 + 30 y^3 - 15 y