Mathematics High School

If x varies inversely as y, and x = 11 when y = 15, find x when y = 3.
11/5
55
33/15

Answers

Answer 1

Answer:

x = 55

Step-by-step explanation:

Given that x varies inversely as y then the equation relating them is

x = [tex]\frac{k}{y}[/tex] ← k is the constant of variation

To find k use the condition x = 11 when y = 15

11= [tex]\frac{k}{15}[/tex] ( multiply both sides by 15 )

165 = k

x = [tex]\frac{165}{y}[/tex] ← equation of variation

When y = 3 , then

x = [tex]\frac{165}{3}[/tex] = 55

Related Questions

Can you just make it as simple as possible please

Please don’t answer unless you know

Answers

Answer:

The light blue one -- second from the left.

x = 14 ; y = 7√2

Step-by-step explanation:

This is a right triangle. One of the angles is 45. So is the other base angle.

So one of the legs is 7√2. The other leg is also 7√2 because they are opposite equal angles.

The hypotenuse is

a^2 + b^2 = c^2

a = b

2a^2 = c^2

2 (7√2)² = c^2

2 49 * 2 = c^2

4 * 49 = c^2

c^2 = 196

c = 14

x=14 y=7\/2 i believe

help me plss // brainliested :))

Answers

Answer: look at the picture.

Determine pe-2) f(x)= x^4-10x^3 + 8x^2+
106x - 105.

Answers

answer: x4 + 10x3 + 8x2 + 4x + 10

2 |  1    10    8    4    10

  |         2   24  64   136

  ----------------------------

      1  12    32   68   146

The remainder theorem says that

p(2) = 146

what is 5/6 plus 3/4

Answers

Answer:

it will be a mixed number

1 7/12

HELP FAST PLEASEE!
Answer choices:
BF
FG
GK
KO

Answers

Answer:

your answer is FG , FG is parallel

The correct answer is FG, FG is parallel to each other because they are directly side by side

Solve the equation x^2+6x+1=0 give your answer

Answers

x^2+6x+1=0

1x ^2 + 6x + 1=0
(a=1, b=6, c=1)

375 is 112% of what number?

Answers

Answer:

420

Step-by-step explanation:

maybe I don't know sorry

Answer:

answer is 420

step by step explanation

If the cost of 25 copies is $5.25, how many copies can be made for $18.90?

Answers

Answer:

I believe 90

Step-by-step explanation:

25÷ 5.25 =4.76

4.76×18.90= 90

Find the slope of 0,5 2,3 ​

Answers

Answer:

y = -x + 5

0 is 0, +5 = 5

-2 + 5 = 3

Which number is an irrational number?
A.) 3.5
B.) √36
C.) √48
D.) 37/100

Answers

A because the others are fractions and not a whole number

Answer:

the answer is c

Step-by-step explanation:

square root of 36 = 6 = 6 / 1D. 37 / 100 is already a fraction. Hence, the only number that cannot be written as a fraction is the square root of 48. The answer is C: the square root of 48 is an irrational number.

PLEASE HELP FAST 50 POINTS

what is the sum of -1/11 and -5/11 A. 4/11 B.6/11 C.-4/11 D.-6/11

Answers

Answer:

D) -6/11

Step-by-step explanation:

Answer:

D) -6/11

Step-by-step explanation:

Zander uses an on-line store that sells songs for $1 each and movies for $6. He used all of his $20 allowance to buy 10 items. How many songs and how many movies did he buy?

Answers

Answer:

2 movies and 8 songs

Step-by-step explanation:

use the formula 1x + 6x = $20 and x + x = 10. so x has to equal to 10, so 1 times 8 is 8 and 6 times 2 is 12. The x’s (8 and 2) equal 10 which is what you were looking for. i don’t know if that made sense but i hope it did

h + 3 = -13
please show work

Answers

H= -16

Step-by-step explanation:

I just need help with this​

Answers

Answer:

2

Step-by-step explanation:

Help me please!!!!!!!

Answers

Answer: A & D

Step-by-step explanation:

Answer:

It would be A and D.

Step-by-step explanation:

Was this the answer you were looking for??

Can someone please help me with math

Answers

Answer:

D

Step-by-step explanation:

Answer:

undefined

Step-by-step explanation:

The slope of a vertical line is undefined

HELP DUE IN 15 MINS! Finish the statement. Corresponding angles of similar figures are??

Answers

Answer:

congruent

Step-by-step explanation:

Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion .

pls help ASAP!!! 40 points!!!!

Answers

144 the circumference is 360 because it’s a circle, 360/5=72 72(2)=144

Can you help me, please?​

Answers

Answer:

5x-8=90

5x=90+8

5x=98

x=98/5

x=19.6

5(19.6)-8

98-8

90

4(19.6)+26

78.4+26

104.4

hence both lines are not perpendicular

How do you solve this?

Answers

Answer:

you do what it says

Step-by-step explanation:

Answer:

850,000

Step-by-step explanation:

Sorry if it's not  the right answer I have not worked on this math for a long time.

How many solutions does the system have?
You can use the interactive graph below to find the answer.
{
21
x
+
6
y
=
42
7
x
+
2
y
=
14

⎩
⎪
⎪
⎨
⎪
⎪
⎧
​

21x+6y=42
7x+2y=14
​

Choose 1 answer:
Choose 1 answer:

(Choice A)
A
Exactly one solution

(Choice B)
B
No solutions

(Choice C)
C
Infinitely many solutions

Answers

Answer:

wait ok

Step-by-step explanation:

Answer:

C. Infinitely Many Solutions.

Step-by-step explanation:

Look at attachment:

Hope this helps! :)

How many miles per minute is 55 miles per hour? round your answer to the nearest hundredth.

. pls explain

Answers

.92 because if you travel 55 miles every hour, you would divide the distance traveled by 60 minutes and find you travel .92 miles per minute


Use the distance formula to find the distance between (4, 2) and (3,5). Use:
d=/(x2 – x,)+ (y2 – y.)?
Round to the nearest tenth ,, will mark brainist and will get points

Answers

Answer:

d = sqrt(x2-x1)^2 + (y2-y1)^2

d = sqrt(4-3)^2 + (-3)^2

d=sqrt(1+9)

d=sqrt10

d=3.2

Let me know if this helps!

Answer:3.2 or square root of 10

Step-by-step explanation:

pleaseeee help me!!!!!!!!

Answers

Answer:

35

Explanation:

The lengths of triangle PQR are 5x the lengths of triangle ABC.

4*5= 20

8*5= 40

7*5= 35

the answer is 35 i’ve done that before

Substitution:
X + 2y = 13
-2x - 3y = -18

Answers

Answer:

x = -3

y = 8

Step-by-step explanation:

x + 2y = 13    ------------(I)

    x  = 13 - 2y -----------(II)

-2x - 3y = -18 ----------(III)

Substitute x = 13 - 2y in equation (III)

   -2*(13 - 2y)  - 3y = -18

-2*13 - 2y *(-2) -3y = -18

  -26  + 4y  - 3y    = -18             {Combine like terms}

               -26 + y =  -18     {Add 26 to both sides}

                         y = -18 + 26

                         y = 8

Substitute y = 8 in equation (II)

x = 13 - 2*8

  = 13 - 16

x = -3

x = -3

y = 8

Someone help and plz make sure it’s right :)

Answers

Answer:

A triangle‘s angles should add up to 180 and the given angles sum up to 130 so x + 58 = 50 so x = -8

Hope this helped and brainliest please

Answer:

-8

Step-by-step explanation:

-8+58=50

50+53+77=180

triangles angles should equal 180

PLEASE HELP!!!
NO LINKS
Question 4 options:

A


B


C


D

Answers

Answer: D

Step-by-step explanation:

Answer:

The Answer is D

The answer is d

Witch is better to buy $6.15 for 24 fl oz of dishwashing liquid or $9.60 for 42 fl oz of dishwashing liquid?

Answers

Answer:

$9.60 for 42 fl oz

Step-by-step explanation:

$6.15 x 2=$12.30

$12.30 for 44 fl oz

$12.30-$9.60=$2.70

you would be paying $2.70 for 4 fl oz when 4 fl oz is 93 cent

Answer:  42 fluid ounce unit of dish soap.

Step-by-step explanation: Why? Well, 24 times 2 gives you 48 fluid ounces for $12.30. But for just 4 less fluid ounces of soap, you pay $9.60. This is just over a dollar for every two ounces of soap.  So $12.30- $9.60= $2.70. this shows you`d need to buy two 24 ounce bottles. *So if you ONLY BUY ONE 24 OUNCE SOAP* you are getting a bad deal. In order to make a better deal buy two 24 ounce bottles to get four more ounces and pay $2.70 more. Hence you only ask about buying one, so 42 ounces is your go to choice.

Write an inequality for each solution set graphed below

Answers

Answer:

x[tex]\geq[/tex]6

Step-by-step explanation:

The dot is filled so it could be equal to 6 and the arrow points to the right so it could also be greater than 6 this is why we put the "equal to or greater than" sign for x

A culture of bacteria triples by the end of each hour. If there were initially 40 bacteria in a culture, how many bacteria should be there after 3 hours.

Answers

40x3=120, so anwser is it

Answer: 360 bacteria

Step-by-step explanation: if it triples every hour, you would need to triple the amount of hours, and multiply that by 40 since 40 was the initial bacterial count. Hope this helps:)

Other Questions
ANSWER FAST GIVING BRAINLIEST!!Which part of the government was missing under the Articles of Confederation and left the States, and their citizens, with no clear way to settle disagreements with a clear, definitive judgment? pleaseeeeeeeeee helpppp i will give extra points Help me i need the answer fast please and dont guess please thank you is 0.5 to 0.75 increase or decrease Disproportionation is a process in which a substancecan act only as a reducing agent.can act only as an oxidizing agent.is both an oxidizing and a reducing agent.is neither an oxidizing nor a reducing agent. please please please please please please help Which one is true plz I need help the third list of subjects for making laws How do u solve this? Would you expect to find older or newer fossils in rock layers closer to the surface? Why? Thomas Jefferson supported:a whiskey taxa National Bankstrong state's rightsa strong executive branch Write the quadratic equation in standard form: -2x-12=-x^2 HELP ME PLEASE WHAT DOES THIS MEAN Find the value of x in the figure Give an example of a decomposer, and explain what would happen if decomposers were absent from a forest ecosystem. Provide evidence to support your claim and explain your reasoning 34.54 rounded to the nearest tenth Identify the maximum of the graph below. Type your answer by filling in the blanks below Please help will mark branliest How would you show your understanding of the difference between a career and a career field ? Which expression represents "6 more than the product of 5 and 3" ?