If y varies directly as x and y = 3 when x = 10, find x when y = 8.

Answers

Answer 1

Answer:

x=26.6 when y=8

Step-by-step explanation:

y=Kx, k=y/x, when y is 3 and x is 10,

k=3/10= 0.3

but when y is 8, x will be given by

x=y/k

x=8/0.3

x=26.6 approximately 27


Related Questions

I need help please! (23)(−98)(−45)(−1)

Answers

Answer:

−101430

Step-by-step explanation:

Pictomath lol

Identify which of the sequences below is a geometric sequence.
A. 2, 4, 6, 8,...
B. 3, 6, 18, 54, ...
C. 2, 6, 18, 54. ...
D. 2, 6, 18, 36, ...

Answers

Answer:

C or B

Step-by-step explanation:

because you have to think and just because the numbers are in order dont mean nun so the most answer that makes sense is C

What is the solution to the following system of
equations?
-2x + 8y = - 14
- 4x + y = - 13

Answers

Step:just like this
Y-1
X3
Hahahaha hahaha hahaha wheushw whe

Please answer all 3 questions. I need real answers. It should only take about 10 minutes. Real answers only, or I will report you.

Answers

Answer:

1.(x-7)(x+2)=x^2-7x+2x-14=x^2-5x+14

2.(x+5)(x-1)=x^2-x+5x-5=x^2+4x-5

3.-2(x+1)(x-2)=-2(x^2-2x+x-2)=-2(x^2-x-2)=-2x^2+2x+4

HELP LAST ATTEMPT !?!!!!!

Answers

Answer:

x=31

Step-by-step explanation:

2x+1=63 [Vertically opposite angles]

2x=63-1

x=62/2

x=31

Write in words. Use commas and hyphens.

38,492

Answers

Thirty-eight thousand, four hundred and ninety-two

Simply write out the number as you would say it out loud!

Ana and Ling are solving |3x + 14| = -6x.
Is either of them correct?...............................
Explain your reasoning.

Answers

Answer:

No! Both are wrong!

Step-by-step Explanation:

the value of absolute function, (|.|) is always positive

that means -6x always has to be positive

and for -6x to be positive x has to be negative

(since, two negatives make a positive)

therefore, the value of x to the equation will be a negative value and not a positive one.

Ana thinks both positive and negative values of x will be the solution, whereas Ling thinks negative value of x can't be a solution. So, they're both wrong.

ONLY negative value of x will be the solution.

The distance from Earth to the moon is about 4×10 5 kilometers. The distance from Earth to Mars is about 5×10 7 kilometers. Use this data to compare the distances and complete the sentence.
The distance from Earth to Mars is _______________
times greater than the distance from Earth to the moon.

Answers

The difference is two order of magnitudes, write down in the space 200

ILL GIVE BRAINLY, HELP IF YOU ARE INTERESTED. THANK YOU

Answers

Answer:

First box is 7x + 21, because when you distribute, you are multiplying the term on the outside of the paranthesis with the term(s) on the inside of the paranthesis.

Second box is 21 + 7x, because the communitive property is basically the same except the terms may be flipped. (Nothing else is different, all terms and signs stay the same, and has the same product/answer.)

Step-by-step explanation:

Hope this makes sense.

Please tell me if I'm wrong :)

Answer:

wrong you for the points you bozzo

3. Solve 1 < 3x – 2 < 13.

Answers

Answer:

1< x <5

Step-by-step explanation:

1<3x−2<13

1+2<3x−2+2<13+2 (Add 2 to all parts)

3<3x<15

33<3x3<153 (Divide all parts by 3)

1< x <5

Answer:

(1,5)

Step-by-step explanation:

A triangle has a base of 16 inches and a height of 1/8 inches. What is its area?

Answers

Answer:

1 in²

Step-by-step explanation:

The area of the triangle calculated using the area formula is 1 in²

Given the Parameters :

Base of triangle = 16 inches

Height of triangle = 1/8 inches

Area of a triangle can be obtained using the relation :

Area = 1/2 × base × height

Substituting the Parameters into the equation :

Area of triangle = 1/2 × 16 × 1/8 = 1 in²

Therefore, the area of the triangle is 1 in²

can you solve five ninths plus four sixths =

Answers

Answer:

five ninths plus four sixths is sixty six fifty four


Please help
100 point question
I will mark brainliest
Please answer the questions in the picture
Thanks :)

Answers

Answer:

5. yes It still has the same density because it is the same thing.

6. a. float   less than one

b. Float less than one

C. Sink   greater than one

7. 1652.4 This is because the density equation is mass/volume. We have the density and mass but no volume. do get it we need to re arrange the equation. mass x density = volume.

Step-by-step explanation:

Need help fast thank you it would really help

Answers

Answer:

See below

Step-by-step explanation:

Line Ay - y₁ = m(x - x₁)y + 3 = -3/4(x + 4)The slope is m = -3/4Line B

Use  the points (0, 5) and (6, 0).

The slope is:

m = (y₂ - y₁)/(x₂ - x₁)m = (0 - 5)/(6 - 0) = - 5/6

Compare the absolute value of slopes:

-|3/4| < |5/6|

The slope of the line A is shallower (or less steep, use the corresponding word from the drop down list) of slope of line B.

Please Help! I will give you a lot of points! (6.3)

The average yearly salary of a lawyer is $34 thousand less than twice that of an architect. Combined, an architect and a lawyer earn $215 thousand. Find the average yearly salary of an architect and a lawyer

What is the average yearly salary of an architect?

What is the average yearly salary of a lawyer?

Answers

Let architect s income be x

Lawyers income be 2x-34

AtQ

[tex]\\ \sf\longmapsto x+2x-34=215[/tex]

[tex]\\ \sf\longmapsto 3x-34=215[/tex]

[tex]\\ \sf\longmapsto 3x=249[/tex]

[tex]\\ \sf\longmapsto x=83[/tex]

[tex]\\ \sf\longmapsto 2x-34=166-34=132[/tex]

Lawyers income=132thousandArchitect s income=83thousand

PLEASE ANSWER THIS
a)Convert 0.25 as fraction
b)Write ¹⁹⁄₂₀ in Decimal Form
Please Answer Ill Rate U 5/5 And Thank U

Answers

Answer:

a) 1/4

b) 0.95

Step-by-step explanation:

0.25 is 25/100, which is 1/4

19/25 is 95/100, which is 0.95

what is the average of 2 1/3 and 3 1/2

Answers

Answer:

2 11/12

Step-by-step explanation:

The average of 2 ⅓ and 3 ½ is 2 ‌11⁄12‌. To find the average, find the sum of the fractions and divide by 2.

2 ⅓ + 3 ½ = ‌7⁄3‌ + ‌7⁄2 = ‌14⁄6 + ‌21⁄6 = ‌35⁄6 or 5 5⁄6

5 5⁄6 ÷ 2 = 35⁄6 × 1⁄2 = 35⁄12 or 2 11⁄12

ANS

The average of 2 and 3½ is 2 11/12

2 + 3½ = 7/3 + 7/2 = 14/6 + 21/6 = 35/6 or 5/6

5 5/6 ÷ 2 = 35/6 × 1/2 = 35/12 or 2 11/12

Finding the Average

Average refers to the sum of the values divided by the count. Therefore, the steps to follow to find the average are below:

Add the given values.

Divide the sum by the count of values.

Equation:

(2 1/3 + 3 1/2) / 2 = ?

Solution:

(2 1/3 + 3 1/2) / 2 = ?

* Change the mixed numbers to improper fractions.

= (7/3 + 7/2) / 2

* Add the fractions. Find the LCD.

= (14/6 + 21/6) / 2

= ( 35/6 ) /2

To divide change the sign to multiplication, The give the reciprocal of the second fraction

= 35/6 × 1/2

= 35/12 or 2 11/12

Final Answer:2 11/12

hope it helps youThank You !!

4/9x8/75

I do not get it

Answers

Answer:

124/ 225

see photos for step to step solution

The ratio
adjacent
describes which function?
hypotenuse
O A. Cosine
O B. Tangent
1.0
O C. Secant
O D. Sine
O

Answers

Answer:

A. Cosine

Step-by-step explanation:

It is cosine because ADJ/HYP is Cosine in Soh Cah Toa.

The ratio adjacent/hypotenuse shows the Cosine function.

What is Trigonometry?

Trigonometric ratios are based on the value of the ratio of sides of a right-angled triangle and contain the values of all trigonometric functions. The trigonometric ratios of a given acute angle are the ratios of the sides of a right-angled triangle with respect to that angle.

We have,

To find the ratio equivalent to Adjacent / Hypotenuse.

We know that the ratio of an angle's perpendicular (opposite) side to its hypotenuse is known as its sine.

and, Cosine of an angle is defined as the ratio of the side adjacent to that angle to the hypotenuse.

or Cosine ratio = Adjacent/ Hypotenuse

Learn more about Trigonometry here:

https://brainly.com/question/29002217

#SPJ7

Every day Ahmet buys a scratch-off lottery ticket with a 40%, percent chance of winning some prize. He noticed that whenever he wears his red shirt he usually wins. He decided to keep track of his winnings while wearing the shirt and found that he won 3 out of 3 times. Let's test the hypothesis that Ahmet's chance of winning while wearing the shirt is 40%, percent as always versus the alternative that the chance is somehow greater.

Answers

Testing the hypothesis, it is found that the p-value of the test is 0.017 < 0.05, which means that we can conclude that the red shirt increases his chances of winning.

At the null hypothesis, we test if the proportion is of 40%, that is:

[tex]H_0: p = 0.4[/tex]

At the alternative hypothesis, we test if the proportion is greater than 40%, that is:

[tex]H_1: p > 0.4[/tex]

The test statistic is:

[tex]Z = \frac{X - p}{s}[/tex]

In which:

X is the sample proportion.p is the value tested at the null hypothesis.s is the standard error, given by:

[tex]s = \sqrt{\frac{p(1 - p)}{n}}[/tex]

With n as the sample size.

In this problem:

0.4 is tested at the null hypothesis, thus [tex]p = 0.4[/tex].Won 3 out of 3, thus [tex]n = 3, X = \frac{3}{3} = 1[/tex].The standard error is:

[tex]s = \sqrt{\frac{0.4(0.6)}{3}} = 0.283[/tex]

The value of the test statistic is:

[tex]Z = \frac{X - p}{s}[/tex]

[tex]Z = \frac{1 - 0.4}{0.283}[/tex]

[tex]Z = 2.12[/tex]

The p-value is the probability of finding a sample proportion of 1 or "above", which is 1 subtracted by the p-value of Z = 2.12.

Looking at the z-table, Z = 2.12 has a p-value of 0.983.1 - 0.983 = 0.017.

The p-value of the test is 0.017 < 0.05, which means that we can conclude that the red shirt increases his chances of winning.

A similar problem is given at https://brainly.com/question/24166849

how many permutation are there of the letters of the word "ENGLISH"

Answers

5040, 120



hope this helps, have a great day! :)

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5040120

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#CarryOnLearning

15 is 37 1/2 of what number?

Answers

Answer: 40

Step-by-step explanation:

15 / 37.5 x 100 = 40

What is 5 3/4×4 2/3 ?

Answers

Answer:

26 5/6

Step-by-step explanation:

make improper fractions by multiplying whole number and denominator, then adding the numerator

(5*4+3)/4 * (4*3+2)/3

23/4 * 14/3

322/12

161/6

26 5/6


What’s the domain and range ?

Answers

Answer:

2,5 I'm guessing

Step-by-step explanation:

because two up and five to the right even though its kinda blurry

The domain of a function h(x) is x≤-2, and the range is y<1. What are the domain and range of its inverse function, h^-1(x)

Answers

Using it's concepts, it is found that the domain and the range of the inverse function are given as follows:

The domain is x < 1.The range is [tex]y \leq 2[/tex].

What are the domain and the range of a function?

The domain of a function is the set that contains all the values of the input.The range of a function is the set that contains all the values of the output.

In an inverse function, the domain and the range are exchanged, hence, considering the original function, for the inverse function we have that:

The domain is x < 1.The range is [tex]y \leq 2[/tex].

More can be learned about domain and range at https://brainly.com/question/10891721

#SPJ1

help Perform the indicated operation.

(-7) · (-5)

-12
-35
12
35

Answers

Answer:

35

Step-by-step explanation:

(-7) • (-5)

= 7 • 5

= 7 + 7 + 7 + 7 + 7

= 14 + 7 + 7 + 7

= 21 + 7 + 7

= 28 + 7

= 35

[tex] [/tex]

Brian has 40 stickers. He shares 5 with his friends every day. After 5 days, how many stickers will Brian have left?

Answers

Answer: 15 stickers

Step-by-step explanation: 5*5=25         40-25=15

Brian will have 15 stickers

Explanation:
you would multiply 5x5 which would equal 25

then subtract 40-25 and that equals 15

5 years ago, the average age of ishan and his father was 27 years old. If ishan is now 1/3 of his father’s age, how old os ishan now?

Answers

Answer:

9

Step-by-step explanation:

3x9=27

Let the age of son be x.
Thus, age of father is 4x.
After 5 years, their ages will be x+5 and 4x+5 years respectively.
As per the question, we have
4x+5=3(x+5)
⇒4x+5=3x+15
⇒x=10
Age of father will be 4x=4×10=40 years.
Thus when son is 10 years old, father is 40 years

What kinds of education did Martin Luther king JR have in high school and college?
Answer ASAP

Answers

Step-by-step explanation:

graduated from Booker T. Washington High School and was admitted to Morehouse College at age 15. Graduates from Morehouse college and enters Crozer Theological Seminary.

King entered Morehouse at the age of fifteen. In 1948, he graduated from Morehouse College with a B.A. degree in Sociology. That fall, he enrolled in Crozer Theological Seminary in Chester, Pennsylvania. While attending Crozer, he also studied at the University of Pennsylvania.

Find the area and perimeter.
5.6 cm

Answers

Answer:

31.36cm;22.4cm

Step-by-step explanation:

hope this helps

Answer:

Answer: 31.36 cm² ; 22.4 cm

Area:

[tex]{ \rm{area = (side \times side)}} \\ { \rm{area = (5.6 \times 5.6)}} \\{ \underline{ \underline { \rm{ \: \: area = 31.36 \: {cm}^{2} \: \: }}}}[/tex]

Perimeter:

[tex]{ \rm{perimeter = (4 \times side)}} \\ { \rm{perimeter = (4 \times 5.6)}} \\ { \underline{ \underline{ \rm{ \: \: perimeter = 22.4 \: cm \: \: }}}}[/tex]

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