Can someone solve this and explain the process

The amount Annika should give to Susan is $3.12

What is Algebra?

One of the many branches of mathematics is algebra. Algebra is a common thread that runs through nearly all of mathematics. It involves the study of mathematical symbols and the rules for using them in formulas.

Given,

The amount of money Annika spend = $15.95

The amount of money Tamara spend = $18.46

The amount of money Susan spend = $22.80

The total amount of money:

$15.95 + $18.46 + $22.80 = $57.21.

The average money spent :

= $57.21/3

= $19.07 ,  for each girl.

Thus Annika should give Susan

= $19.07 - $15.95

= $3.12

Hence, Annika should give $3.12 to Susan

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Answer:6 trays

Step-by-step explanation:

36 people two cupcakes each means 36x2=72

on tray holds 12 cupcakes 72/12=6 trays

The area of a parallelogram is:

a = bh

The base, b, of the parallelogram is 14.

The issue with this particular figure? We need the perpendicular height. We are given the side width, but that cannot be used in the final equation. So, we employ the Pythagorean Theorem.

We know that in the right triangle, a = 4, and c = 8.

a^2 + b^2 = c^2
4^2 + b^2 = 8^2
16 + b^2 = 64
16 - 16 + b^2 = 64 - 16
b^2 = 48
√b^2 = √48
b ≈ 6.93

So, b in this right triangle is equal to h in the parallelogram. So:

a ≈ 14(6.93)
a ≈ 97.02

Step-by-step explanation:

a linear function must follow the structure

y = ax + b

we use the given data point numbers for x and y to solve for the 2 variables a and b.

we use 2 data points to get a solution for the 2 variables. if the third data point then fits into the same equation, then all 3 points are on a line, and the function is therefore linear. if not, then not.

-8 2/5 = a×-7 1/2 + b

-6 = a×-1 1/2 + b

let's subtract the second from the first equation to eliminate b and solve for a :

-8 2/5 = a×-7 1/2 + b

- -6 = a×-1 1/2 + b

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

-2 2/5 = a×6 0

6a = -2 2/5 = (-2×5 - 2)/5 = -12/5

a = -12/5 / 6 = -2/5

and now we use one of the 2 original equations with the newly found information to solve for b :

e.g.

-6 = -2/5 × -1 1/2 + b = -2/5 × -3/2 + b = 6/10 + b = 3/5 + b

-6 - 3/5 = b

(-6×5 - 3)/5 = b

-33/5 = b

so, our proposed linear function is

y = -2x/5 - 33/5

let's see, if the third point is on the line (then the equality is true for its coordinates) or not :

-2 = -2/5 × 8 1/2 - 33/5 = -2/5 × (8×2 + 1)/2 - 33/5

-2 = -2/5 × 17/2 - 33/5 = -34/10 - 33/5 = -34/10 - 66/10

-2 = -100/10 = -10

that is not true (-2 is not equal to -10), so the third point is not on the line between the first 2 points.

that means the function is nonlinear.

Answer: 60% chance or 3:5

Step-by-step explanation: well, 40/24 is 0.6, which is 60%, or you can see 4 is 10%, and 20 is 50%, and add them together to get 60%. 60% is also 6:10, which can be simplified to 3:5

The system is sadly flawed ._.

The fraction of the hour that remained is 1/4 hour.

The portion or part of the complete item is represented by a fraction. It stands for the equal components of the whole. The denominator and numerator are the two components of a fraction. The top number is referred to as the numerator, and the bottom number is referred to as the denominator.

The students have to submit the book reports in 1 hour.

After the first report, 2/3 hours remained. The next two reports took 1/6 hour and 1/4 hour respectively.

After the first report, 2/3 hours remained.

The next two reports took 1/6 and 1/4 hours.

So, the total time to complete the next two reports is:

= 1/6 + 1/4

= 10/24

= 5/12 hours

Therefore, the fraction of hour remained will be:

= 2/3 - 5/12

= ( 2/3 ) × ( 4/4 ) - 5/12

= 8/12 - 5/12

= 3/12

= 1/4 hour

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Answer:

y-intercept= (0,0)

Step-by-step explanation:

4x+5y=0

4(0)+5y=0

5y/5=0/5

y=0

4x+5(0)=0

4x/4=0/4

x=0

same for x-intercept (0,0)

For dilation, a figure's size and shape only change during transformation, but during translation, the size of the figure's image and preimage are congruent.

Congruent in geometry refers to being the same size and shape. Congruence can be used with figures, angles, and line segments. If any two line segments are equal in length, they are said to be congruent. If two angles have the same measure, they are said to be congruent.

Techniques for transformation: In a xy-plane, transformation involves changing the size and shape of an item.

Translation and dilation are a couple of the transformation methods used.

For dilation, a figure's size and shape only change during transformation, but during translation, the size of the figure's image and preimage are consistent.

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Answer:

-6

Step-by-step explanation:

by using -6 any value of x would make the equation true resulting in infinitly many solutions

Cost of the TV before sale £350

We come across phrases like cost price, tagged price, discount, and selling price when making a purchase. Shop owners give discounts to customers to encourage product sales. Discount is the term used to describe a rebate or an offer made to clients on the listed price of goods. Let's examine the connections between these concepts.

Given,

Sale% = 20%

The cost of TV after the sale = £280

Finding the original price:

                   100% - 20% = 80%

So 80% is the price £280

We have to find the 20% which has been less

Or, £280 = 0.80 x T

Let the original price be T,

                               280 = 0.80 x T

                               280/0.80 = T

                                      350 = T

Hence, the original price of the TV was £350.

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Answer:

0.315

Step-by-step explanation:

Answer:

  C) The circumcenter is on the outside of an obtuse triangle.

Step-by-step explanation:

You want to know where the circumcenter is in relation to the sides and vertices of different triangles.

The circumcenter of a triangle is the center of the circle through its vertices. As such, it will never lie on a vertex of the triangle.

As you can see in the attached figure, the circumcenter of an acute triangle is inside the triangle.

For a right triangle, the circumcenter is the midpoint of the hypotenuse.

The circumcenter of an obtuse triangle is outside the triangle.

__

Additional comment

The circumcenter is located at the point where the perpendicular bisectors of the sides meet.

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Answer:

|0.525| > |−0.067|

Step-by-step explanation:

Simplifying then comparing both terms |0.525| and |−0.067|, 0.525 is greater than 0.067, which means that the first term is greater than the second term.

Answer:

a. x=5

b. x=4

Step-by-step explanation:

The surface age. The surface age is the amount of time that has passed between the start of a surface's or interface's creation and the observation or measurement. A continuous probability distribution called a normal distribution has values distributed symmetrically, primarily in an area around the mean.

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Answer:

Step-by-step explanation:

5. A n B = ∅  (the empty set)

6. A u B = {x|x is an integer, x ≠ 0}

7. B n C = {x|x<0}

8. B u C = {x|x<0 or a positive odd integer}

An example of a graph with 4 vertices, with at least one vertex having a degree of 1 is a square graph.

There are 11 simple graphs on 4 vertices.

A graph is a set of points, known as vertices, and lines between those points are referred to as edges. there are many exclusive styles of graphs, along with linked and disconnected graphs, bipartite graphs, weighted graphs, directed and undirected graphs, and simple graphs.

This sort of graph with an even wide variety of vertices of diploma 4 has an even length, so our graphs must have 1, three, or 5 vertices of degree four. as much as isomorphism, there is precisely one graph of each type. A related graph G is known as a Hamiltonian graph if there's a cycle that includes each vertex of G and the cycle is referred to as a Hamiltonian cycle. Hamiltonian stroll in graph G is a walk that passes via every vertex precisely as soon as.

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The value of the car in very nice condition is $5177.

From the information, a car that originally cost $3,668 in 1955 is valued today at $62,125 if in excellent condition, which is 12 times as much as a car in very nice condition.

Let the value of the nice condition car be x

Therefore, the expression will be;

= (12 × x) = 62125

12x = 62125

Divide

x = 62125 / 12

x = 5177

The value is $5177.

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endpoint: (14, 28) coordinates of the other endpoint c.

The x-value at the midpoint lies halfway between the values at the two positions. The y-value midway between the two positions is known as the midpoint.

I start by placing the endpoint coordinate at the top and the halfway coordinate at the bottom.

(2, 10)

(6, 9)

I then calculate the difference between endpoint 1 and the midpoint.

+8 and+19

Applying that to the second coordinate's midpoint

(6 ,9)

 8 +19

endpoint: (14, 28)

you can check using the midpoint formula ( x + x / 2, y + y / 2)

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Answer:

x = 6

Step-by-step explanation:

8x + 7x = 90

15x = 90

x = 6

The graph of an inequality is a region in the Cartesian plane. To know which line is the limit of the graphical region, the inequalities are as if they were equations, that is, graph the following lines:

To do this, first clear y in each of the equations:

First equation

Second equation

Now, give x values ​​that are within the domain of each equation and replace them in each equation to find its corresponding value in y:

First equation

Second equation

Now, with the points found you can graph the lines that are the limit of the inequalities. So, you have

Finally, it only remains to paint the regions, taking into account the symbols of the inequalities

In the case of the first inequality, you can see that y "is less than" the rest of the terms, and in the second inequality, you can see that y "is greater than" the rest of the terms.

Therefore, the graph of the given system of inequalities is

The area of the iPhone 5s in the nearest hundredth is 7252.72 mm².

The iPhone 5s is rectangular in shape and has a base of 58.57 mm and a height of 123.83 mm.

The area of the iPhone 5s can be found as follows:

Therefore,

area of the iPhone 5s = lw

where

Therefore,

l = 58.57 mm

w = 123.83 mm

Hence,

area of the iPhone 5s = 58.57 × 123.83

area of the iPhone 5s = 7252.7231

Therefore,

area of the iPhone 5s = 7252.72 mm²

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The value of [tex]2\frac{1}{2} -1\frac{5}{6}[/tex] as an fraction is 2/3 .

In the question ,

the expression is given as

[tex]2\frac{1}{2} -1\frac{5}{6}[/tex]

To convert a mixed fraction [tex]a\frac{b}{c}[/tex] into a improper fraction , we use the  formula

[tex]a\frac{b}{c}[/tex] = (a*c+b)/c

let us first convert the given mixed fraction into improper fraction ,

using the formula of conversion , we get

[tex]2\frac{1}{2}[/tex] = (2*2+1)/2 = 5/2

and

[tex]1\frac{5}{6}[/tex] = (1*6+5)/6 = 11/6

Substituting the values , the expression becomes

= 5/2-11/6

taking the LCM as 6 and solving further , we get

= 15/6 - 11/6

= (15-11)/6

= 4/6

= 2/3

Therefore , The value of [tex]2\frac{1}{2} -1\frac{5}{6}[/tex] as an fraction is 2/3 .

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Part a

we have the function

R=-0.1x^3+11x62-100x

using a graphing tool

Part b

we have that

The value of x cannot be a negative number

The value of R can be a negative number

therefore

part c

the answer part c is the option A and C

5x + 4y = -40

4y = -40 -5x

4y/4 = -40/4 -5x/4

y = -10 -5x/4

hence the y-intercept is -10

Answer:

dog

Step-by-step explanation:

After decreasing £16870 by 3% we get, £16363.90

A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%".

First, find the percentage of £16870 by 3%

%value = 3% * 16870

            = (3 / 100) * 16870

            = 506.1

Now, just minus with actual value

New value = actual value - %value

We know, actual value = £16870 and %value = 506.1

so, New value = 16870 - 506.1

we get, New value = £16363.90

Therefore, After decreasing £16870 by 3% we get, £16363.90

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The equivalent expression of 8(x+3)−14(20x−56)​ is - 272x + 808.

Two algebraic expressions are equivalent, when the two expressions have the same value when we plug in the same value(s) for the variable(s).

In other words, two algebraic expressions are said to be equivalent if their values obtained by substituting the values of the variables are same.

Therefore, the equivalent expression of 8(x+3)−14(20x−56)​ can be found as follows;

8(x+3) − 14(20x−56)​

open the parenthesis

8x + 24 -  280x + 784

combine the like terms

8x + 24 -  280x + 784

8x -  280x + 24 + 784

Therefore, the equivalent expression is as follows:

- 272x + 808

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From the graph we get that:

The vertex of the parabola 1 has coordinates (5,4), and its equation is:

The vertex of parabola 2 has coordinates (-3,-2), and its equation is: