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
Kamila [148]
3 years ago
6

Y is inversely proportional to x. When y=25, x=4 Work out y when x=20

Mathematics
1 answer:
ipn [44]3 years ago
8 0

Answer:

y=5 when x=20

Step-by-step explanation:

Using the format for inverse proportions: y=k/x

To find k, substitute 25 in for y and 4 for x to find:

25=k/4 ⇒ k=100

Using this we can substitute k and x in for 100 and 20 to find:

y=100/20 ⇒ y=5

You might be interested in
What is 57/6 simplified?
ludmilkaskok [199]
Answer:
19/2
Step-by-step explanation :
U divide the numerator and the denominator by the same number which is 3
57 divided by 3 = 19
6 divid by 3 = 2
So the answer is 19/2
3 0
2 years ago
Read 2 more answers
Helppp and explain too
kozerog [31]

Answer:

the first option

Step-by-step explanation:

I have attached the explanation. hope this help

5 0
2 years ago
a trapezoid with base measure of 23 km and 29km an area of 390km . find the height of the trapezoid.
cupoosta [38]
Hello!

To find the area of a trapezoid you use the equation

A =  \frac{a+b}{2} h

Put in the values you know

390 =  \frac{23+29}{2} h

Add

390 = \frac{52}{2} h

Divide

390 = 26 * h

Divide both sides by 26

15 = h

The answer is 15km

Hope this helps!
3 0
3 years ago
Read 2 more answers
Solve the following system. y = x 2 - 9x + 10 and x + y + 5 = 0. The solutions are
shepuryov [24]
X+y+5=0

y=-x-5

If a solution exists y=y so we can say

x^2-9x+10=-x-5  add x+5 to both sides

x^2-8x+15=0 now factor

x^2-3x-5x+15=0

x(x-3)-5(x-3)

(x-5)(x-3) so x=3 and 5, using y=-x-5

y(3)=-8 and y(5)=-10

So the two solutions are:

(3,-8) and (5,-10)

6 0
3 years ago
Read 2 more answers
A=bx+cx+d solve for x
BigorU [14]
(a/bc) - d = x is the answer
8 0
3 years ago
Read 2 more answers
Other questions:
  • Arianna kicks a soccer ball off the ground and into the air with an initial velocity of 42 feet per second. Assume the starting
    6·2 answers
  • What is 56 1/4 %= I'm having a hard time with this one
    8·1 answer
  • A B C Or D? Look at picture
    11·1 answer
  • How can division patterns help us divide multiples of 10
    5·1 answer
  • Find the inverse for the linear function 2) f(x) = -2x+3​
    14·1 answer
  • Put these numbers in order 55, 52, 46, 52, 46, 43, 49, 56, 42
    15·2 answers
  • Please help i need this
    13·1 answer
  • What is 12 / 2/3 ? nothing pops up when i search it and i have a module exam!
    6·1 answer
  • HELP I NEED HELP ASAP
    5·1 answer
  • Given the pattern: 18, 9, 4.5, 2.25 <br> Find the next two terms
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!