QR = 5x - 15, and QS = 100

QR = 5x - 15, And QS = 100

Answers

Answer 1

The value of x if R is the midpoint of QS is 31 units.

How to find value of x using midpoint?

The midpoint is the middle point of a line segment.

It is equidistant from both endpoints, and it is the centroid both of the segment and of the endpoints.

The midpoint is halfway between the two end points.

Therefore, R is the midpoint of QS

Hence,

QS = QR + RS

QR = 5x - 15

QS = 100

Therefore, QR and RS are congruent because R is the midpoint of QS

QR = RS

Hence,

100 = 5x - 15 + 5x - 15

100 = 10x - 30

100 + 30 = 10x

130 = 10x

divide both sides by 10

x = 130 / 10

x = 13

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Related Questions

John has two types of boxes. The smaller box can store 8 tins of coffee and the bigger box can store 12 tins of coffee. If the total number of boxes is 20 and he has 184 tins of coffee, by forming a pair of simultaneous equations, find the number of each kind of box.​

Answers

He will need 14 boxes which can store can store 8 tins of coffee and 6 boxes that can store 12 tins of coffee.

let us assume:

Number of 8- tin boxes= x

Number of 12- tin boxes= y

we are given the condition that total number of boxes are 20, so-

x+y=20

⇒ x= 20-y

We are also given the condition that he has 184 tins of coffee, so-

8x+12y= 184

⇒ 8(20-y) + 12y = 184

⇒ 160 -8y +12y = 184

⇒ 4y= 24

⇒ y=6

⇒ x=20 -y

⇒ x= 20 - 6

⇒ x= 14

What do you mean by conditional linear equations?

A linear equation is an identity if solving it results in a true assertion, such as 0 = 0. The answer set is "all real numbers." An equation is conditional if there is only one solution to a linear equation, such as x = 3.

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What Is the equation of a line that passes through the coordinates (4,1) and (1,4)

Answers

Equation of the line is x +y = -5.

What is equation?

Equation is a declaration that two expressions with variables or integers are equal. In essence, equations are questions, and attempts to systematically identify the solutions to these questions have been the driving forces behind the creation of mathematics.

Given Data

coordinates (4,1) and (1,4)

A line is singular if you are aware that it goes through two specific coordinates (x₁ , y₁) and (x₂ , y₂) .The equation for the line is if the points are

[tex]\frac{x - x}{x_{1} - x}[/tex]¹₂ = [tex]\frac{y - y_{1} }{y_{1}- y_{2} }[/tex]

Equating coordinates:

[tex]\frac{x-4}{4-1}[/tex] = [tex]\frac{y-1}{1-4}[/tex]

[tex]\frac{x-4}{3}[/tex] = [tex]\frac{y-1}{-3}[/tex]

Cross multiplying,

-3(x-4) = 3(y-1)

-3x + 12 = 3y -3

3x + 3y = -15

x +y = -5

Equation of the line is x +y = -5.

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Elisabeth has 10 princess movies, but can only take four of them to her sleepover.
How many different combinations of movies can she take?

Help again pleaseeee

Answers

Finding a grouping, ordering, or assignment of a discrete, finite set of things that complies with predetermined requirements is the goal of combinatorial issues.

She has 210 different combinations.

What is meant by combinatorial methods?

A new wave of research methodology called the combinatorial approach to materials seeks to greatly speed up the discovery and development of novel substances.

The area of mathematics concerned with finding solutions to conundrums involving the selection and arrangement of parts of particular (often finite) sets in line with predetermined norms.

Finding a grouping, ordering, or assignment of a discrete, finite set of things that complies with predetermined requirements is the goal of combinatorial issues. Candidate solutions are combinations of solution elements that could be found while trying to find a solution, but they don't have to meet all the requirements.

So, she has [tex]$C_1^4=\frac{A H}{A \frac{A}{4}}=\frac{10 \times 2 \times 8 \times 7}{1 \times 2 \times 3 \times 4}=210$[/tex]

So she has 210 different combinations.

[tex]$c_{1=}^4=\frac{4 \%}{A f}$[/tex]

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Just need the bottom one answered

7th grade easy Math
NEED ANSWER ASAP DUE TODAY

Answers

From perimeter formula p = 2(l + w)
L is not known so se will write it in terms of w

P = 6w + 8
2(l + w) = 6w + 8

Divide both sides by 2
l + w = 3w + 4
Subtract w from both sides
l + w - w = 3w - w + 4 => l = 2w + 4

From the area formula
A = l * w
Substitute 2w + 4 in place of l
A = (2w + 4) * w
A = 2w^2 + 4w

Tessa has a coin jar full of dimes and pennies. When she took the coin jar to the bank, she was told that it contained exactly $27.34. Give three different combinations of the number of dimes and pennies that could have been in the coin jar.

Answers

Answer:

Step-by-step explanation:

Note: In solving our problems below, we will use the value of the coins in dollars which are listed under the third column in the table above. As you can see, the penny has a value of 0.01, the nickel has a value of 0.05, the dime has a value of 0.10, and the quarter has a value of 0.25

Find the Greatest Common Factor (GCF):
70x³z, 45y4z²

Answers

The greatest common factor for the given expression is 5z.

What is GCF?
The greatest common factor, which is the product of two or more numbers, is the largest number (GCF). A natural number is created by dividing them by the biggest number (factor). There are a few factors that both share once all the number's factors have been identified. The greatest common factor is the one with the largest number among the common factors. The highest common factor is another name for the GCF (HCF). The highest number that is a factor of all the numbers is known as the greatest common factor of two or more numbers.

Given, the first expression is: y₁ = 70x³z = 5z.14x³ -(i)
Also, the second expression is: y₂ = 45y4z² = 5z.36yz -(ii)
Comparing (i) and (ii), the greatest common factor for y₁ and y₂ is 5z.
Thus, the greatest common factor for the given expression is 5z.

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Which expression represents the perimeter
of this quadrilateral in units?
4r² - 1
²+3
2
5r²+2
A. 9² +8
B. 117² - 8
C.
11² + 8
D. 9r² + 2r-8
²+4

Answers

Answer: 11r² + 8 ==> C

Step-by-step explanation:

P=Sum of all sides

P=4r² - 1 + r² + 3 + r² + 4 + 5r² + 2

P=4r² + r² + r² + 5r² - 1 + 3 + 4 + 2

P=5r² + 6r² + 2 + 6

P=11r² + 8 ==> C

How do I find what r should equal?​

Answers

Answer: r = √(v/πh)

Step-by-step explanation:

v = πr^2h

v/(πh) = r^2

√(v/πh) = r

ATTENDING TO PRECISION Use the graph to write a function of the form y = a tan bx.

Y=?

Answers

Answer:.

Step-by-step explanation:

Convert 98 pounds to kilograms. (1 pound = 0.454 kilogram) 444.92 kilograms 216 kilograms 44.492 kilograms 21.6 kilograms

Answers

The conversion of 98 pounds to kilograms is 44.5 pounds.

This is a question of conversion of weights.

Unitary method

The unitary method is used to find the value of a single unit from a given multiple. For example, the price of 40 pens is Rs. 400, then how to find the value of one pen here.

Also, once we have found the value of a single unit, then we can calculate the value of the required units by multiplying the single value unit.

We know that,

1 pound = 0.45359237 kilograms ≈ 0.454 kilograms

Hence, using unitary method, we can write,

98 pounds = 98*0.454 kilograms = 44.492 kilograms ≈ 44.5 pounds.

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solve 2x=1=7x+44
please try your best if you dont know

Answers

Answer: 2x-1=7x+44

2x-7x=44+1

-5x=45

x=-9

Step-by-step explanation:

3. Solve the compound inequality −2(x + 1) < 4 and
4x +1 -3. Graph the solution.

Answers

x+1>4/-2
So x>-2-1
x>-3

Factor out the coefficient of the variable term 6s-3/4

Answers

The coefficient of the variable term in the equation 6s - 3/4 is 6. The variable term is s while the constant term is -3/4

How to find the coefficient of the variable term

given data

6s-3/4

The coefficient of the variable term is the number multiplying the variable term. The variable term in the equation is "s"

The number in the given equation is 6

The equation could be written as

6 * s - 3/4

from the rewritten equation we can see that 6 is multiplying the variable and hence the coefficient.

The other term in the equation is constant term and this is - 3/4

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In the circle,o is the centre and ab is the diameter

Answers

Answer:

centre =

diameter = ab

radius = (ab)/2

Step-by-step explanation: hope this helps

Part 2: Find the volume of the shipping box using the total number of fish food cubes. Step 1: Find the volume of the fish food cube. Remember to include units. Volume of the fish food cube = _____ × _____ × _____ = __________ Step 2: Find the volume of the shipping box using your answer from Part 1. Remember to include units. Volume of the shipping box = _____ × _____ = __________ Part 3: Find the volume of the shipping box using a volume formula. Remember to include units. V = l × w × h = _____ × _____ × _____ = __________ Are your answers for the volume of the shipping box in Parts 2 and 3 equal? Why or why not?

Answers

The volume of one fish food cubes is: 1/64 ft³

Using the volume formula, the volume of the shipping box is: 15/4 × 3 × 13/4 = 585/16 ft³

The number of fish food cubes that can be packed in the shipping box is: 2,340 fish food cubes.

What is the Volume of a Box and a Cube?

The volume of a box = length × width × height

A cube has equal side lengths, therefore, the volume of a cube = (side length)³ = side length × side length × side length.

We are given that the fish food cubes have side lengths of 1/4 ft. Therefore:

Volume of fish food cubes = 1/4 × 1/4 × 1/4

Volume of fish food cubes = (1 × 1 × 1)/(4 × 4 × 4)

Volume of fish food cubes = 1/64 ft³

Using the volume formula, we are given the parameters of the box as:

Length (l) = 3¾ = 15/4 ft

Width (w) = 3 ft

Height (h) = 3¼ = 13/4 ft

Therefore,

Volume of shipping box = 15/4 × 3 × 13/4

Volume of shipping box = (15 × 3 × 13)/(4 × 4) = 585/16 ft³

The number of fish food cubes that can be packed in the shipping box = volume of shipping box/volume of one fish food cube

= 585/16 ÷ 1/64

= 585/16 × 64/1

= (585 × 64)/(16 × 1)

= 37,440/16

= 2,340 fish food cubes.

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Expand and simplify
(√15-√3)²
Give your answer in the form b-c√5
where b and c are integers.

Answers

[tex] = ( \sqrt{15} - \sqrt{3} )( \sqrt{15} - \sqrt{3} ) \\ = \sqrt{15} ( \sqrt{15} - \sqrt{3} ) - \sqrt{3} ( \sqrt{15} - \sqrt{3} ) \\ = 15 - \sqrt{45} - \sqrt{45} + 3 \\ = 15 + 3 - 2 \sqrt{45} \\ = 18 - 2( \sqrt{9 \times 5} ) \\ = 1 - 2(3 \sqrt{5} ) \\ = 1 - 6 \sqrt{5} [/tex]

ATTACHED IS THE SOLUTION

please help me solve this​

Answers

Answer:

400

Step-by-step explanation:

Under her cell phone plan, Sydney pays a flat cost of $35.50 per month and
$5 per gigabyte. She wants to keep her bill under $50 per month. Write and
solve an inequality which can be used to determine a, the number of
gigabytes Sydney can use while staying within her budget.

Answers

The number of gigabytes that Sydney can use while staying within her budget is less than 2.9 gigabytes.

What are gigabytes?

gigabytes (GB) – pronounced with two hard Gs – is a unit of storage capacity equal to approximately 1 billion bytes. In decimal form (base 10), a gigabyte is exactly one billion bytes. In binary form, a gigabyte is 230 bytes or 1,073,71,82 bytes. Giga comes from the Greek word for giant. Werner Buchholz is credited with coining the term byte in 1956 and helped design IBM's 7030 Stretch, the first transistorized supercomputer.

gigabytes has been a common unit of measurement for data storage products since the mid-1980s. In recent years, terabytes (TB) have become a more common measure of storage capacity, especially for hard drives and solid-state drives.

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The temperature was 98 degrees last Friday. Wednesday it was 24 degrees
cooler. Which expression represents the relationship in the temperature
between Friday and Wednesday?

Answers

Answer:

98 + (-24)

Step-by-step explanation:

From the set {12, 22, 25}, use substitution to determine which value of x makes the inequality true 3x < 66

Answers

A difference between two values indicates whether one is smaller, larger, or simply not equal to other. From the set {12, 22, 25}, value of x makes the inequality true 3x < 66 is 12.

What do you mean by inequality?

Inequality, A declaration of an order relationship between two numbers or algebraic expressions, such as greater than, greater than or equal to, less than, or less than or equal to. a week ago.

A difference between two values indicates whether one is smaller, larger, or simply not equal to other.

A and B claim that they are not equal.A must be less than B if A = B.An is greater than b when a > b. These two constitute tight inequity.A must be smaller than or equal to b when dividing a by b.An is greater than b if a and b are equal.

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[tex]5sin^2x-3sinx=0[/tex]

solve in degrees
solve in the interval 0°[tex]\leq[/tex]x[tex]\leq[/tex]360°

Answers

[tex]5sin^2(x)-3sin(x)=0\implies sin(x)[5sin(x)-3]=0 \\\\[-0.35em] ~\dotfill\\\\ sin(x)=0\implies x=sin^{-1}(0)\implies x= \begin{cases} 0\\ 180^o\\ 360^o \end{cases} \\\\[-0.35em] ~\dotfill\\\\ 5sin(x)-3=0\implies 5sin(x)=3\implies sin(x)=\cfrac{3}{5} \\\\\\ x=sin^{-1}\left( \cfrac{3}{5} \right)\implies x\approx \begin{cases} \stackrel{I~Quadrant}{36.87^o}\\\\ \stackrel{II~Quadrant}{143.13^o} \end{cases}[/tex]

cheryl works 5 hours each day for 7 days a week she earns £490 each week how much does cheryl earn per hour

Answers

Answer:

14 pounds per hour

Step-by-step explanation:

[tex] \frac{490}{7\times 5} = \frac{490}{35} = 14[/tex]

In a certain​ chemical, the ratio of zinc to copper is 3 to 16 A jar of the chemical contains 528 grams of copper. How many grams of zinc does it​ contain?

Answers

Answer:

99 grams of zinc

Step-by-step explanation:

Ser up a proportion

[tex]\frac{zinc}{copper}[/tex] = [tex]\frac{zinc}{copper}[/tex]  Put in the ration and the actual amount of copper i and solve for the actual number of zinc

[tex]\frac{3}{16}[/tex] = [tex]\frac{z}{528}[/tex]  cross multiply to solve for z

16z = 3(528)

16z = 1584  Divide both sides of the equation by 16

z = 99

Help answering these please!!

Answers

Answer:

I will give you the formula and than it will be easy for you to solve this.

Find the positive difference between 16 and -2

Answers

[tex] = 16 - ( - 2) \\ = 16 + 2 \\ = 18[/tex]

The positive difference is 18.

PLSS HELP!!! When three times a number n is increased by 12, the result is at least 32. Solve, and then write your answer in set, interval, and graphical notation, if possible.

Answers

       In mathematics, "inequality" refers to a relationship between two expressions or values that are not equal to one another.

Which definition of inequality is the best?

The meaning of inequality

       A social discrepancy is one example of a characteristic that is unequal or uneven. b: unequal opportunity or distribution.

     A disparity in size, quantity, quality, social standing, or another aspect is what is meant by the term "inequality." When you have ten of something and someone else has none, that is an instance of inequality.

A number = n 12

multiplied by a number = n+12

which is 32 less than the number = 3n-32

n+12 =3n-32

44 =2

The result is equal to 2n n=22.

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Bunting has been hung in a straight line
between a wall and a house, as shown
below.
Calculate the height, p, of the house.
Give your answer in metres to 2 d.p.
36°
2.64 m
5.47 m
Not drawn accurately

Answers

Bunting has been hung in a straight line between a wall and a house, then the height, P, of the house P = 6.61 m.

Third angle in a triangle = 180 - (90+36)

= 180-126

= 54°

So,

Third angle in a triangle = 54°

We can use Sin rule,

Then, we get,

[tex]\frac{Sin A}{BC} =\frac{Sin B}{AC} =\frac{Sin C}{AB}[/tex]

Based on the given condition,

We can write,

Sin A = 54°

Sin B = 36°

BC = 5.47

Then,

Sin 54°/5.47 = Sin 36°/AB

Hence, Sin 54° = 0.8090

Sin 36° = 0.5877

[tex]\frac{0.8090}{5.47} =\frac{0.5877}{AB}[/tex]

AB = [tex]\frac{0.5877 * 5.47}{0.8090}[/tex]

AB = [tex]\frac{3.2147}{0.8090}[/tex]

AB = 3.97 m

So,

Height , P = 2.64 + 3.97

P = 6.61 m.

Therefore,

We can use triangle formula, then the height, P, of the house P = 6.61 m.

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Felicity put down $800 on a used car. She took out a loan to pay off the balance of the cost of the car. Her monthly payment will be $175. After 9 months how much will she have paid for the car?

Enter your answer in dollars.

Answers

The answer ls $2375


Its honestly quiet easy to do in your head tbh

If h(x)=x^2/f(x) and f(3) = 2 and f'(3) = 4, then h' (3) = -12.

true
false​

Answers

Answer:

FALSE.

Step-by-step explanation:

Given:

h(x)=x^2/f(x) f(3) = 2 f'(3) = 4

To Find:

Whether h'(3) = -12 or not.

Formula used:

For a function y = f(x)/g(x), the differentiation of y is defined as y' = [f'(x)*g(x) - g'(x)*f(x)]/(g(x))^2. This is know as quotient rule of differentiation.

Using the above formula, we have

h'(x) = [2x*f(x) - f'(x)*x^2]/(f(x))^2

So, h'(3) = [2*3*2 - 4*(3)^2]/(2)^2

h'(3) = (12-36)/4

h'(3) = -24/4 = -6

So, h'(3) = -6 and not -12.

So, the given value is FALSE.

pls solve I've attempted it loads of times and got the wrong answer

The cylinder below has a radius of 3cm and length if 14cm
work out the volume of the cylinder give your answer to the nearest integer​

Answers

Answer:

396 cm³

Step-by-step explanation:

Volume= πr²*height

r=3

3² π *14

9*14*π= 396cm³

volume of a cylinder with radius as 3cm and height as 14cm is 396cm^3

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