2 p varies directly as q and the square of r and inversely as s.
a. Write the equation of the relation.
b. Find kif p = 40 when q = 5, r = 4 and s = 6.
c. Find p when q = 8, r= 6 and s= 9.
d. Finds when p= 10, q=5 and r = 2.

Answers

Answer 1

The equation for the relation is [tex]p=k \frac{qr^2}{s}[/tex].

The value of k when q = 5, r = 4 and s = 6 is 3.

The value of p when q = 8, r= 6 and s= 9 is 96.

The value of s when p= 10, q=5 and r = 2 is 6.

A connection between two different items is called variation. There are two categories of difference. Direct Variation is the name of the first one. When two variables move in the same direction, direct variation occurs. Additionally, as one variable rises, the other variable rises as well. Inverse Variation is the second kind. When the two variables move in the opposite direction, inverse variation occurs. Additionally, this occurs when one variable rises while the other falls.

Since p varies directly as q and the square of r and inversely as s. So the equation will be [tex]p=k \frac{qr^2}{s}[/tex].

Now, finding the value of k, for p = 40 when q = 5, r = 4 and s = 6,

[tex]p=k \frac{qr^2}{s}\\40=k \frac{5\times4^2}{6}\\k = 3[/tex]

Now, finding the value of p when q = 8, r= 6 and s= 9,

[tex]p=3 \frac{8\times 6^2}{9}\\=96[/tex]

Now, finding the value of s when p= 10, q=5 and r = 2,

[tex]10=3 \frac{5\times 2^2}{s}\\\\10=3\times \frac{20}{s}\\s=6[/tex]

Therefore, the equation for the relation is [tex]p=k \frac{qr^2}{s}[/tex] , the value of k when p = 40 when q = 5, r = 4 and s = 6 is 3, the value of p when q = 8, r= 6 and s= 9 is 96 and the value of s when p= 10, q=5 and r = 2 is 6.

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Related Questions

after begging his parents for 3 years, jason is finally going to clown college! on the first day, his juggling instructor divides a box of bean bags equally among the 16 clowns in jason's class. each clown gets 6 bean bags. which equation can you use to find the number of bean bags b in the instructor's box?

Answers

The equation that can be used to determine the number of bean bags in the instructor's box is b = 17 x 4.

Given,

In the question:

His juggling instructor divides a box of bean bags equally among the 16 clowns in Jason's class. each clown gets 6 bean bags.

Now, According to the question:

The equation that can be used to determine the number of bean bags in the instructor's box is b = 16 x 6.

The number of bean bags in the instructor's box is 96.

What is multiplication?

Multiplication is a mathematical operation that can be used to determine the product of two or more numbers. The sign used to represent multiplication is ×.

Hence, The equation that can be used to determine the number of bean bags in the instructor's box is b = 17 x 4.

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find the missing side of the right triangle.

Answers

Answer:

Step-by-step explanation:

48

Answer:

51

Step-by-step explanation:

Pythagorean theorem

a^2+b^2=c^2

45^2+24^2

2025+576

2601=c^2

square root both sides

51=c

Hopes this helps please mark brainliest


Joel types 180 words in 4 minutes.
How many words per minute
can he type?

Answers

Answer:

45 words

Hope this helps :)

Step-by-step explanation:

We know that he can type 180 wprds in 4 minutes.

So to find how man words he types per minute which is 1 minute, then we need to divide 180 by 4.

1. Divide.

45

4| 180

- 16↓

20

- 20

0

2. Answer.

Joel can type 45 words per minute.

3. Check.

45

× 4

180 ✓

HELP ME PLSS THIS IS DUE NOW

Answers

The answer is: x=-2

Solve for x
-2x+6y=13

Answers

X=3y-13/2

This is solving the equation

Two squares are similar. The
perimeter of the smaller square is p
46 cm. The perimeter of the larger
square is doubled the perimeter of
smaller square. Find the side
length (in cm) of the
larger square.

Answers

Answer:23

Step-by-step explanation:

Divide 46 by 4 so u know the length of the side of the smaller square


the answer is 11.5 so them you multiply It by 2 and you get 23cm


hope this helps

One fifth of a number plus three times the number is equal to twice the number plus 42 . What is the number

Answers

The value of the number is 35

What are algebraic expression?

Algebraic expressions are the idea of expressing numbers using letters or alphabets without specifying their actual values.These letters are called variables. An algebraic expression can be a combination of both variables and constants. Any value that is placed before and multiplied by a variable is a coefficient.

If the number is represented by x then,

1x/5+3x= 2x+42

making the left hand side a single fraction, then,

(x+15x)/5= 2x+42

16x/5= 2x+42

multiply both sides by 5

16x= 10x+210

collect like terms

16x-10x= 210

6x= 210

x=35

therefore the value of the number is 35

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What is the converse of the conditional statement "If the streetlights are on, then the sun has gone down."?
O If the sun has gone down, then the street lights are on.
O If the streetlights are not on, then the sun has gone down.
O If the streetlights are not on, then the sun has not gone down.
If the sun has not gone down, then the streetlights are on.

Answers

The converse of the conditional statement "If the streetlights are on, then the sun has gone down" is If the sun has not gone down, then the streetlights are on and is denoted as option D.

What is Converse of the conditional statement?

This is referred to as the type of sentence which is formed when the hypothesis and the conclusion are interchanged.

In this scenario, "If the streetlights are on, then the sun has gone down" when interchanged will be  If the sun has not gone down, then the streetlights are on which therefore makes option D the correct choice.

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Jamar bought 22 chicken wings for $48.40. How much would it cost for 6 wings?

Answers

Answer: $13.2

Step-by-step explanation:

You can use proportions to find the cost(x):

[tex]\frac{22}{48.40} =\frac{6}{x} \\\\22x=6*48.4\\\\22x=290.4\\\\x=13.2[/tex]

Today, Austin's age

is 1/4 of Stephanie's

age. In 4 years,

Austin's age will be

2/5 of Stephanie's age.

How old is Stephanie

today?

Answers

Answer: Steph is 16 today

Step-by-step explanation:

Austin age today = x

Austin in 4 years = x+4

Steph age today = 4x (because Austin is 1/4 her age today)

Steph age in 4 years is 4x + 4

In 4 years Austin's age is 2/5 of Steph's, so:

2/5 (x+4) = 4x + 4

Now solve for x!

x+4 = (8/5)x + 8/5

12/5 = (3/5)x

Therefore Austin is 4 years old today (x=4) and...

Steph age today = 4x = 4x4 = 16

The perimeter of a rectangle is 150 inches. The width is 12 inches. Find the length.

Answers

Answer:

63 inches

Step-by-step explanation:

The perimeter of a rectangle is found by adding all of the side lengths. Since both pairs of opposite sides have the same length, an equation for the perimeter can be written like this:

[tex]P=2w+2l[/tex]

Where w and l represent the width and length.

Since we are asked to find the length, rewrite the equation in terms of l:

[tex]l=\frac{P-2w}{2}[/tex]

We know the values for P and w, so plug those in:

[tex]l=\frac{150-2(12)}{2}[/tex]

Now simplify!

[tex]l=\frac{126}{2}=63[/tex]

Answer:

l = 63 in  

Step-by-step explanation: If the P=150 in  W=12 in so .... using the formula P=2 (l + w) you get  L= P/2 - W = 150/2 - 12 = 63 in. I hope this helps!

What is an equation of the line that passes through the point (3,-1)(3,−1) and is parallel to the line 5x+3y=6

Answers

Answer: y=-5/3x+4

Step-by-step explanation:

Since the line is parrallel that means that the gradient is the same

We can reorder 5x+3y=6 into 3y=-5x+6 but in order to find the gradient the number infront of y must be 1 so...

3y=-5x+6

y=-5/3x+2

Now we know that the gradient is -5/3

To find th y-intercept we just subsitute the points it passes through (3, -1) into the equation

y=-5/3x+c

-1=-5/3(3)+c

-1=-5+c

4=c

A movie theater has a seating capacity of 183. The theater charges $5.00 for children, $7.00 for students,
and $12.00 of adults. There are half as many adults as there are children. If the total ticket sales was $
1316, How many children, students, and adults attended?
children attended.

Answers

Using simplification, if the total ticket sales was $1316, then 70 children, 78 students and 35 students attended.

From the given question,

We know that the capacity of movie theater is 183.

The theater charges $5.00 for children, $7.00 for students and $12.00 of adults.

There are half as many adults as there are children.

If the total ticket sales was $1316, then we have to find how many children, students, and adults attended.

Let the number of children that attended = x

Since, there are half as many adults as children.

Therefore number of adults = 1/2x =0.5x

We know there are total of 183 tickets

Therefore number of students = 183 - x - 0.5x

number of students = 183 - 1.5x

Each children ticket costs = $5

Then the price of children tickets = 5x

Similarly for adults each ticket costs = $12

So total cost of adult ticket = 12×0.5x = $6x

Now the cost of student tickets = 7(183 - 1.5x)

As given that

Total cost of all tickets = $1316

So the expression should be

5x + 6x + 7(183 -1.5x) = 1316

Simplifying

11x + 1281 - 10.5x = 1316

Subtract 1281 on both side

11x + 1281 - 10.5x-1281 = 1316-1281

Simplifying

0.5x = 35

Divide by 0.5 on both side we get

x = 70 children

Now finding the number of adults

= 0.5x

= 0.5×70

= 35 adults

Now finding the number of students

= 183 - 1.5x

= 183 - 1.5×70

= 183 - 105

= 78 students

Hence, If the total ticket sales was $1316, then 70 children, 78 students and 35 students attended.

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CAN SOMEONE DO THE ESSAY PART

Answers

The two triangles in the first figure is congruent by the ASA (angle-side-angle) axiom of congruency.

First diagram:

In ΔABC and ΔDEF we have :

∠C = ∠F

∠B = ∠E

BC = FE

∴ΔABC ≅ ΔDEF (by ASA axiom of congruency)

Second diagram:

In ΔABC and ΔDEF we have :

AB = XZ

BC = ZY

CA = XY

∴ΔABC ≅ ΔXYZ (by SSS axiom of congruency)

Third diagram:

In ΔKLM and TSU we have :

KL = TS

∠K = ∠U

∠M = ∠S

∴ΔKLM ≅ ΔTSU (by AAS axiom of congruency)

Fourth diagram:

In ΔABC and XYZ we have :

AB = YZ

BC = ZX

∠C = ∠Z

∴ΔABC ≅ ΔXYZ (by SAS axiom of congruency)

Fifth diagram:

No the two triangles are not congruent , they are similar.

AAA axiom is not for congruency, it is for similar triangles.

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HELP HELP HELP


(2^4x+4) / (2^x+1)

Answers

Answer:

[tex]2^{3x+3}[/tex]

Step-by-step explanation:

to divide exponents with the same base you just subtract them

(4x+4)-(X+1)

4x+4-x-1

3x+3

Hopes this helps please mark brainliest

Answer:

frac{16x+4}{2^{x}+1 =

Step-by-step explanation:

Evaluate the exponent! hope this helped

Please I need help please

Answers

The measure of missing angles in the diagram is angle 1 = 88°, angle 2 = 42° and angle 3 = 113°  .

In the question ,

a figure is given ,

the labelled diagram is show below .

we can see that the angle ACB and angle ECD are vertically opposite angles ,

we know that, the vertically opposite angles are equal ,

So, angle ACB = m∠2 = 42°

In triangle ABC

By Angle Sum Property Of Triangle ,

angle A + angle B [tex]+[/tex] angle C [tex]=[/tex] 180°

50° + m∠1 + 42° [tex]=[/tex] 180°

92° + m∠1 = 180°

m∠1 = 180° - 92°

m∠1 = 88°

In triangle CDE ,

By Angle Sum Property Of Triangle

angle C + angle D [tex]+[/tex] angle E [tex]=[/tex] 180°

42° + m∠3 + 25° [tex]=[/tex] 180°

m∠3 + 67° = 180°

m∠3 = 180° - 67°

m∠3 = 113°

Therefore , The measure of angle 1 = 88°, angle 2 = 42° and angle 3 = 113°  .

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10 pionts!!!!

if f(x)=6x+5, find f(1)

Answers

Answer:

11

Step-by-step explanation:

Plug in 1 to the function:

f(x) = 6x + 5

f(1) = 6(1) + 5

f(1) = 6 + 5

f(1) = 11

HELP!! 25 POINTS

Simplify the expression to a + bi form:
√36+ √-75+ √1-√-108

Answers

Answer: 7-i√3

Step-by-step explanation:

√36+ √-75+ √1-√-108

6 + √75i + 1 - √108i

7 + 5i√3 - 6i√3

7-i√3

The sum of three times a number and 2 less than 4 times that same number is 15. Which of the followin
equations could be used to find the value of the number, n? Explain how you arrived at your choice.

Answers

Answer:

11

Step-by-step explanation:

Three times an unknown number

= 3(n)

Added to

Two less than four times the same unknown number

= 4 - 2(n)

Total

= 3(n) + 4 - 2(n) = 15

= 3n + 4 - 2n = 15

Collect like terms

= 3n - 2n = 15 - 4

n = 11

wer:
Find the slope of the line that passes through the given points.
(-3, 7.2) and (2,-2.3)

Answers

Answer:

Step-by-step explanation:

this slope of a line question is such a common question.  I feel like math teachers all over don't understand how to teach this subject.  Just so you know,  I answer a question like this about 10 times a day when I am on here.  It's like one of the most common questions.  

Here is my copy and paste answer for this...

point P1 (-3,7.2)  in the form (x1,y1)

point P2(2,-2.3)  in the form (x2,y2)

slope = m

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

m = (-2.3-7.2) / (2-(-3))

notice all the minus signs and how i'm being very careful to keep close track of them.  Also, who ever has written this question is intentionally trying to trip you up by putting in all the minus signs,  there is no need for so many minus signs to teach this well.  Anyway...

m = -8.5 / 5

m = - 1.7

the problem question ends there , but there is a common place this question is supposed to take you.   to the point slope formula.  but for another question.

The slope of (-3, 7.2) and (2, -2.3) is -1.9.

Consider,

(x1, y1) = (-3, 7.2)

(x2, y2) = (2, -2.3)

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

slope = ((-2.3) - (7.2))/((2) - (-3))

slope = (-9.5)/(5)

slope = -1.9

Therefore, the slope of the given points (-3, 7.2) and (2, -2.3) is -1.9.

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10. Which segment below is perpendicular to line AB? How do you know?

Answers

Answer:

Line CE

Step-by-step explanation:

We know that lines are perpendicular when their intersections form 90° angles (see below diagram). ∠E is a 90° angle, so line CE is perpendicular to line DF. Assuming that line DF is parallel to line AB, we now know that line CE is also perpendicular to line AB.

Please do the one you understand anything is helpful!

Answers

Answer:

1. 30 years old

2. 7 years old

3. 5 hours

Step-by-step explanation:

We can solve all of these problems using algebraic equations.

1. In this question, we will use variable x to represent the age of Mrs. Olsen's daughter.

In 10 years, x - 20 = 2x. That means that in 10 years, Mrs. Olsen will be 40 years old. That means she is 30 right now.

2. In this question, we will use variable x to represent the age of Alyssa.

If, in 30 years, their total age is 88, their current total is 28. Tyler is 3 times as old as Alyssa, so Tyler is 21 and Alyssa is 7.

3. Ryan leaves home at 50 mph. That means, in an hour Ryan will be 50 miles away from home. At that point, Jacob leaves home at a speed of 60 mph, so the gap between them closes by 10 miles each hour. That means that Jacob will take 5 hours to catch up, counting from when he left (how far is this workplace jeez?!?!?!?).

We could also represent this with a graph.

Hour 1: R = 50, J = 0 (Jacob leaves after this hour so it doesn't count for the answer)

Hour 2: R = 100, J = 60

Hour 3: R = 150, J = 120

Hour 4: R = 200, J = 180

Hour 5: R = 250, J = 240

Hour 6: R = 300, J = 300

A web designer charges a $200 fee plus $50 per hour to build a website. Which equation represents the total cost, y, to a customer based on the number of hours, x, it takes to buld the website?

Answers

Answer: 50x+200=y

Step-by-step explanation:

This is the answer because the number of hours is not provided leaving us to multiply 50 by x, 200 is the flat fee so we will know to automatically add that to our first step and since y is the total this will form the equation, 50x+200=y.

In the formula A = r², find A when ris
14 centimeters.

Answers

Step-by-step explanation:

A = r², find A when r is 14 centimeters.

A = (14)²

A = 196 cm²

Which expression is a difference of a number and a product?
OA. 7-5x
OB. 5+x-3
C. 5(x-3)
OD. 3+5x

Answers

⇒Option A is an expression of a difference 7 and 5x which is the product of 5 and x.

⇒Option A is the  answer.

Find the component form of the vector that translates (3, − 2) to ′(− 1, 4)

Answers

The vector that translates P to P' is (-4 , 6)

What is a translation?

A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction either in it’s range(involving values of y) or in it’s domain(involving values of x).

The points are given;

[tex]{P = (3, -2)}\\{P' = (-1, 4)}[/tex]

The translation rule is calculated as:

{(x,y) = P' - P}

So, we have:

{(x,y) =(− 1, 4) - (3, − 2)}

Combine the terms;

{(x,y) = (-1 -3 , 4 + 2)}

{(x,y) = (-4 , 6)}

Express as vectors;

(x, y) = (-4 , 6)

Hence, the vector that translates P to P' is  (-4 , 6)

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There is one negative solution and two nonreal solutions to the equation x3 + 87 = 7x2 + x. What are the solutions?

3, 5 + 2i, 5 – 2i
3, –5 + 2i, –5 – 2i
–3, 5 + 2i, 5 – 2i
–3, –5 + 2i, –5 – 2i

Answers

The solutions to the expression x³ + 87 = 7x² + x are given as follows:

–3, 5 + 2i, 5 – 2i.

How to obtain the solutions to the equation?

The equation is defined as follows:

x³ + 87 = 7x² + x.

In standard format, it is given by:

x³ - 7x² - x + 87 = 0.

It has one negative solution, hence from the options it is:

x = -3.

The verification is:

(-3)³ - 7(3)² - (-3) + 87 = 0.

Considering the linear factor (x + 3), the function can be written as follows:

x³ - 7x² - x + 87 = (x + 3)(ax² + bx + c).

As the product of a linear function and a quadratic function results in a cubic function.

Expanding the right side of the equality, we have that:

ax³ + (b + 3a)x² + (3b + c)x + 3c = x³ - 7x² - x + 87.

Hence the coefficients of the quadratic equation are given as follows:

a = 1.b + 3a = -7 -> b = -10.c = 87/3 = 29.

Hence the equation is:

x² - 10x + 29 = 0.

And the solutions, using a quadratic equation calculator, are given as follows:

x = 5 + 2i.x = 5 - 2i.

Which means that the third option is correct.

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Use the Law of Detachment to draw a conclusion from the two given statements.
If two angles are complementary, then the sum of their measures is 90°.

Answers

The Law of detachment states that if m then n and m is true then q is true.

If two angles are complementary, then the two angles' sum is 90 degrees.

This is m∠E + m∠F = 90.

Option C is the correct answer

What is the law of detachment?

The Law of detachment states that if m then n and m is true then q is true.

We have,

If two angles are complementary, then the sum of their measures is 90°.

This is in the form of,

If M then N and if M is true then N must be true.

So,

If two angles are complementary, then the two angles' sum is 90 degrees.

If the two angles are m∠E and m∠F.

m∠E + m∠F = 90

Thus,

If two angles are complementary, then the two angles' sum is 90 degrees.

This is m∠E + m∠F = 90.

Option C is the correct answer

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Simplify
a9/a5

a^4

1/a^4

4

a^14

Answers

Answer:

36a^10

Step-by-step explanation:

Solve the equation by factoring.
(x+2)(x + 7) = 0
A) (-2,-7)
C) (5,-8)
B) -5,5)
D) (6, 3)

Answers

Step-by-step explanation:

(x+2)(x+7) = 0

It is already factorised.

So, x = (-2,-7)

So, option A is correct

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