Mathematics High School

1
Suppose that cand d vary inversely and that d = 2/9 (2 over 9) when c = 5.
Write a function that models the inverse variation and find d when c = 8.

Answers

Answer 1

Answer:

d = 10/72

Step-by-step explanation:

c and d vary inversely

c = k/d

Where,

k = constant of proportionality

d = 2/9 when c = 5

c = k/d

5 = k ÷ 2/9

5 = k × 9/2

5 = 9k/2

Cross product

5*2 = 9k

10 = 9k

k = 10/9

c = k/d

c = 10/9 ÷ d

c = 10/9 × 1/d

c = 10/9d

find d when c = 8

c = 10/9d

8 = 10/9d

Cross product

8*9d = 10

72d = 10

d = 10/72

Related Questions


Explain what it means to have a positive change, give an example.

Answers

making positive changes in eating habits may decide to also improve physical fitness the family need to send workbook 1988 making a few small positive changes will not on the boost your confidence for help you take control of managing the morning

please help me before tomorrow

factor the trinomial
5w^2 – 6w +1​

Answers

Answer:

(5w-1) (w-1)

Steps:

5w^2-w-5w+1

w(5w-1)-(5w-1)

(5w-1) (w-1)

(5w-1) (w-1)

A radio station plays a winning song once per hour at a randomly selected time (in minutes). During an announcer’s four-hour show, how many different arrangements of winning times could occur if a) repetition of times during each hour is permitted? b) repetition of times during each hour is not permitted?

Answers

Answer:nrkrdjdjddjdjdjjdjdjdjdjdjd

Step-by-step explanation:

Hdhdhdhdhdhd

An hour befor show time,only 155 people are seated for rockfest.According to ticket sales 95% of the people have yet to arrive

Answers

Question:

An hour before show time, only 155 people are seated for rockfest. According to the ticket sales, 95% of the people have yet to arrive. How  many tickets were sold?

Answer:

3100 tickets

Step-by-step explanation:

Given

[tex]p = 95\%[/tex] --- Yet to arrive

[tex]Seated = 155[/tex]

Required

Determine the total number of people

If 95% are yet to arrive, then 5% have arrived (i.e. 100% - 95%)

So, the total number of people is calculated as:

[tex]5\% * x = 155[/tex]

Where x represents the total number of tickets

Make x the subject

[tex]x = \frac{155}{5\%}[/tex]

[tex]x = \frac{155}{0.05}[/tex]

[tex]x = 3100[/tex]

All of the expressions that have the same value as LaTeX: 892\div8892 ÷ 8. Group of answer choices LaTeX: 8920\div808920 ÷ 80 LaTeX: 894\div10894 ÷ 10 LaTeX: 89.2\div0.0889.2 ÷ 0.08 LaTeX: 8.92\div0.88.92 ÷ 0.8 LaTeX: 0.892\div0.008

Answers

Answer:

[tex](a)[/tex] [tex]8920\div80[/tex]

[tex](e)[/tex] [tex]0.892\div0.008[/tex]

Step-by-step explanation:

Given

[tex]892\div8[/tex]

Required

Select equivalent expression

[tex]8920\div80[/tex]

[tex]894\div10[/tex]

[tex]89.2\div0.08[/tex]

[tex]8.92\div0.8[/tex]

[tex]0.892\div0.008[/tex]

Start  by solving the given expression (using a calculator)

[tex]892\div8[/tex] [tex]= 111.5[/tex]

Then we solve the given options (using a calculator)

[tex](a)[/tex] [tex]8920\div80[/tex]

[tex]8920\div80[/tex] [tex]= 111.5[/tex]

[tex](b)[/tex] [tex]894\div10[/tex]

[tex]894\div10[/tex] [tex]= 89.4[/tex]

[tex](c)[/tex] [tex]89.2\div0.08[/tex]

[tex]89.2\div0.08[/tex] [tex]= 1115[/tex]

[tex](d)[/tex] [tex]8.92\div0.8[/tex]

[tex]8.92\div0.8[/tex] [tex]= 11.15[/tex]

[tex](e)[/tex] [tex]0.892\div0.008[/tex]

[tex]0.892\div0.008[/tex] [tex]= 111.5[/tex]

The equivalent expressions are (a) and (e)

PLEASE HELP ME!!!!!!!!!! MUST SHOW ALL WORK

5x2 + 2x - 3 = 0

14x2 - 5x - 1 = 0

15x2 - 2x - 1 = 0

6x2 + 11x - 2 = 0

2x2 - 5x - 7 = 0

Answers

Do it by splitting middle term.
Then you will be able to get factors . You can learn how to split middle term by searching videos on you tube or any site.

What is 45 + 25x = 65 + 15x?

Answers

Answer:

x = 2

Step-by-step explanation:

Answer:

x = 2

Step-by-step explanation:

45 + 25x = 65 + 15x

25x - 15x = 65 - 45

10x = 20

x = 2

Leon brought chocolate and vanilla cupcakes to school for his birthday. 66 students picked a vanilla cupcake and 22 students picked a chocolate cupcake. What percentage of the students pickeda vanilla cupcake?​

Answers

Answer:

shjrthhyhshhscwjicsa

Is this a linear function or exponential function?
Day
1
2
3
4
5
Number of
1
12
23
34
45
Infected
People
O Exponential Function
O Linear Function

Answers

Answer:

linear function............

The waves created by two speed boats in a lake interact to form larger waves. This is an example of

constructive interference.
destructive interference.
absorption
transmission

Answers

Answer:

The answer is A. Constructive interference .

Step-by-step explanation:

I got it right on the Unit Test Review . Hope this helps <3 .

Answer:

A: Constructive interference

Step-by-step explanation:

Here is proof sorry im late but its extra proof its right give other person brainliest

Analyze the function f(x)=-^2+5x+6. What do you remember about this type of functions? What do you recognize?

Answers

Answer:

It is a quadratic function. You are missing the x, I assume. You can factor it out to the bionominals of (x+3)(x+2).

Answer:

It's a quadratic polynomial (of degree 2) with a positive slope of 5 and a y-intercept of 6.

Step-by-step explanation:

I'm assuming you meant "x^2" and not "-^2".

Are the events "selecting a male" and "selecting a student who has green eyes" Mutually Exclusive?​

Answers

Answer:

no. there are 48 with both.

What equation is shown by the graph below?

Answers

Answer:

y= x+ 4

Step-by-step explanation:

use y= mx+b where m is the slope and y is the y intercept

in this case the slope is one and y intercept is four

John feeds the wild birds in his garden with bird seed placed in three feeders. Two of these containers have the same capacity, each holding 300 grams of seed, whilst the third feeder holds 900 grams of seed. His seed storage bin contains 18 kilograms of seed. Because more birds can visit the large container, it takes the same amount of time to become empty as the smaller ones, and all three containers have to be refilled every second day. How many days will he be able to feed the birds for?

Answers

Answer:

6 days I think

Step-by-step explanation:

What is the value of x in the figure below? Round to the nearest tenth.
Х
18
52

Answers

Wdym? Is there a shape or is it a fraction

The drama and math club scenario is represented by the system of equations in which x represents the drama club members and y represents the math club members. x + y = 72 1 4 x + 1 8 y = 14 What number can you multiply the second equation by to create the additive inverse, or the opposite of the y-variable? How many members does the drama club have? How many members does the math club have?

Answers

Answer:

-8, 40, 32.

Step-by-step explanation:

On edge owo <3~

Answer:

-8, 40, 32.

Step-by-step explanation:

In ΔHIJ, the measure of ∠J=90°, the measure of ∠H=35°, and IJ = 72 feet. Find the length of HI to the nearest tenth of a foot.

Answers

Answer:

125.5 feet

Step-by-step explanation:

Square-based pyramid
AC = 10 cm
14 cm

Answers

try matway

Step-by-step explanation:

A bag contains hair ribbons for a spirit rally. The bag contains 7 black ribbons and 5 green ribbons. Which is the probability that Lila selects a black ribbon AND Jessica selects a green ribbon? Express your answer as a fraction in simplest form.

A. 5/22

B. 35/144

C. 35/132

D. 7/33

Answers

Answer:

your answer will be C

Step-by-step explanation:

PS my name is Lila too

I hope this helps

have a nice day/night

Mark brainiest, please:)

which one is greater 0.03 or 0.006​

Answers

Answer:

0.03

Step-by-step explanation:

Find the circumference of a circle with an arc length of 28.3 meters and its central angle for that are of 210 degrees.

Answers

Answer:

Step-by-step explanation:

you multiply 28.3 times 210

Which of the following is NOT a monomial?

Answers

wutz da optionz????????

Enter the pair of fraction with the smallest common denominator between 4/5 and 1/5 the pair of fractions with the smallest common denominator are

Answers

Answer:

LCD = 24

Equivalent Fractions with the LCD

1 1/2

=

36/24

3/8

=

9/24

5/6

=

20/24

3

=

72/24

How many groups of 1/2 days are in 1 week? Write a multiplication equation or a division equation to represent the question, then answer the question.

Answers

Answer:

14 half days

Step-by-step explanation:

7d per 1w

1/2d / 7d = 14 half days

quation = 1/2d / 7d = x

Find the angle of the least positive measure (in degrees, not equal to the given measure) that is coterminal with A.
A= -647°

Answers

9514 1404 393

Answer:

  73°

Step-by-step explanation:

A coterminal angle will be one that is this angle plus some multiple of 360°. We observe that the magnitude of the given value is between 360 and 720, so we can find the coterminal angle of interest by adding 720°.

  -647° +720° = 73°

The least positive measure angle coterminal with A is 73°.

Hii this is clockwise

Answers

if you are turning clockwise you will land at south
You start at north and go two angles right which is 180° so a straight down to south

Estimate V106 to the
nearest integer.

V means square root

Answers

√106 is equal to approximately 10.29563
Rounded of to 10.3

Choose the answer based on the most efficient method as presented in the lesson.
If the first step in the solution of the equation 2x - 8 = 5x + 3 is "subtract 2x," then what should the next step be?

subtract 5x
add 8
subtract 3

Answers

Answer:

You would not subtract 3...

Step-by-step explanation:

It should be

2x- 8= 5x+3

subtract 5x from both sides,

then add 8 onto both sides, then you would get 0 on one side, and 11 on the other so you would have

-3=11 which equals

3.6

Answer

add 8

Step-by-step explanation:

6 X 1/4 need help on this

Answers

The Answer:

(Fraction) 3/2    OR    (Decimal) 1.5

− 2/3 a+ 5/6 a− 1/6 Combine like terms to create an equivalent expression.

Answers

Answer:

1/6a+-1/6

Step-by-step explanation:

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