1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
topjm [15]
2 years ago
15

Y is inversely proportional to x. When x = 2.5, y = 4. Find the value of y when x = 8.

Mathematics
1 answer:
Burka [1]2 years ago
6 0

Answer:

y = 32/2.5

Step-by-step explanation:

formula:

y=kx

k = y/x

k= 4/2.5

so this is k

y = 4/2.5 x

y = 4 / 2.5 × 8

y = 32/2.5

answer.) y = 32/2.5

hope it was helpful

thank you

You might be interested in
Part A: Factor x2b2 − xb2 − 6b2. Show your work. (4 points)
IrinaVladis [17]
PART A. Notice that we have b^{2} as a common factor in all the terms, so lets factor that out:
x^{2} b^2-xb^2-6b^2
b^2(x^{2} -x-6)
Now we need can factor x^{2} -x-6:
b^2(x^{2} -x-6)
b^2(x+2)(x-3)

We can conclude that the complete factorization of x^{2} b^2-xb^2-6b^2 is b^2(x+2)(x-3).

PART 2. Here we just have a quadratic expression of the form a x^{2} +bx+c. To factor it, we are going to find <span>two numbers that will multiply to be equal the </span>c<span>, and will also add up to equal </span><span>b. Those numbers are 2 and 2:
</span>x^{2} +4x+4=(x+2)(x+2)
Since both factors are equal, we can factor the expression even more:
x^{2} +4x+4=(x+2)^2

We can conclude that the complete factorization of x^{2} +4x+4 is (x+2)^2.

PART C. Here we have a difference of squares. Notice that 4, can be written as 2^2, so we can rewrite our expression:
x^2-4=x^2-2^2
Now we can factor our difference of squares like follows:
x^{2} -2^2=(x+2)(x-2)

We can conclude that the complete factorization of x^2-4 is (x+2)(x-2)
7 0
3 years ago
Aman and Prakash coloured an entire Harry Potter Colouring Book together. The book had 75 pages. Aman coloured 60% of the pages.
tia_tia [17]

Answer:

A) 30 pages

Step-by-step explanation:

No of pages = 75

Aman coloured 60 % of the pages= 75 *60/100= 45

Prakash coloured 75 - 45 = 30 pages

8 0
3 years ago
Read 2 more answers
if a box of pen given 200 children each will get to Pen if the number of children is reduced by 10 how many pens would each get​
wlad13 [49]

Answer:

20

Step-by-step explanation:

So origianally, a box of 200 pens gave 2 each to every child. IThat means that there were 100 kids origianally. How? 200/2=100.

If they reduced it by 10, then 100/10=10.

200 / 10 = 20.

So each child would get 20 pens!

<em>For any questions, please say so in the comments :)</em>

<em>Have a blessed day and hope this helped! :D</em>

8 0
3 years ago
Can you please help me on 2,3,4, and 5? I will mark the brainliest plus 12 points for answering.
Marianna [84]

Answer:

2) Exact

3) Exact

4) Exact

5) Approximation

Step-by-step explanation:

8 0
2 years ago
Last one on test Parallelogram ABCD is a rectangle.
marusya05 [52]
Answer: 10

2AX=BD
2(3y-5)=5y
6y-10=5y
add 10 to each side 6y+10-10=5y+10
6y=5y+10
subtract 5y from each side 6y-5y=5y-5y+10
6y-5y=y
y=10



3 0
3 years ago
Read 2 more answers
Other questions:
  • × - 2/3=7<br><br> Enter your answer in the box : <br><br> Hurry plz
    9·2 answers
  • I need help with this math question for my homework.
    6·2 answers
  • ((40 possible points)) Calculate the volume of water in liters
    9·1 answer
  • What is domain and range
    9·2 answers
  • An advertising executive wants to determine if a new billboard placed in a city caused sales of her product to increase. To do t
    12·1 answer
  • gina worked a total of 57 hours last week at her 2 part time jobs, one job pays $8 per hour and the other job pays $7.25 per hou
    10·1 answer
  • Solve for x. Round your answer to the nearest tenth.<br> 42<br> 37<br> X=<br> units
    14·1 answer
  • 3. Find x in AABC.<br> C 4<br> 16<br> X<br> A<br> B<br> a. 8<br> b. 10<br> c. 20<br> d. 64
    14·1 answer
  • James is five years older than David. The sum of<br> their ages is 89. How old is David?
    15·2 answers
  • 9 ft19 ftPlease refer to the rounding rules in the instructions.Circumference of the base = 59.5feetArea of the base = 254.3squa
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!