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
balu736 [363]
2 years ago
9

Help guysmake p da subject of the formula​

Mathematics
1 answer:
Basile [38]2 years ago
3 0

Answer:

p=\dfrac{m}{k-s}

Step-by-step explanation:

When they ask you to make a variable the "subject of the formula", they're basically asking you to build a "machine" for it. In the expression y=mx+b, for instance, if we know what m, x, and b are, we can plug them all in and out comes a value for y! To build that machine, we need to get it by itself on one side of the equation.

So, we want to build this machine for p, and the equation we have to build it out of is

1=\dfrac{pk}{m+sp}

One think we can immediately say about this equation: for a fraction to be equal to one, its numerator and denominator have to be equal to each other. So we can say

m+sp=pk

Ok, what next? Well, if we want p by itself, we need to somehow peel it off of that <em>sp</em> and <em>pk</em>. Let's collect them on the right side by subtracting <em>sp </em>from both sides:

m=pk-sp

p is a <em>common factor</em> of both <em>sp </em>and <em>pk</em>, so we can peel it away using the distributive property:

m=p(k-s)

And from here, we can divide both sides by k-s and we'll have p as our subject:

\dfrac{m}{k-s}=p or p=\dfrac{m}{k-s}

So if we know m, k, and s, we can easily solve for p. If m = 4, k = 2, and s = 0:

p=\frac{4}{2-0} =\frac{4}{2}=2

You might be interested in
A Square was altered so that one side is increased by 9 inches in the other side is decreased by 2 inches.The area of the result
LekaFEV [45]

Let s represent the length of any one side of the original square.  The longer side of the resulting rectangle is s + 9 and the shorter side s - 2.

The area of this rectangle is (s+9)(s-2) = 60 in^2.

This is a quadratic equation and can be solved using various methods.  Let's rewrite this equation in standard form:  s^2 + 7s - 18 = 60, or:

s^2 + 7s - 78 = 0.  This factors as follows:  (s+13)(s-6)=0, so that s = -13 and s= 6.  Discard s = -13, since the side length cannot be negative.  Then s = 6, and the area of the original square was 36 in^2.

4 0
2 years ago
Can someone please answer this? If you do i will crown you as brainliest!
scoray [572]

A. GIVE ME BRAINLIST

8 0
3 years ago
Read 2 more answers
Can someone help me on question 7b ?
Marizza181 [45]
Lengths are given to 1dp so the biggest that the lengths could be is 4.65cm and 5.35cm. if you use pythagoras on these to find hypotenuse, this is the upper bound.
4 0
2 years ago
Y=x +20. What is the operation represented in this relationship?
dlinn [17]

Answer:

addition


Step-by-step explanation:


8 0
2 years ago
Read 2 more answers
Simplify the numerical expression. 125.7 - (-1.82).
sergey [27]
125.7 - ( - 1.82 )
125.7 + 1.82 
127.52
6 0
3 years ago
Other questions:
  • 11. Lucas is making one dozen sn
    11·1 answer
  • HhhhhhhhhhhhhhhhhhhhhhheeeeeeeeeeeeeeeelpppPP!!!!!!!!<br><br> pls.
    14·1 answer
  • If you know can you please help me??
    7·1 answer
  • HELP ME ASAP THANK YOU
    9·2 answers
  • What is 3X +7 equals five
    12·1 answer
  • Any of these please I’m having difficulty
    9·1 answer
  • 6! + 2! <br><br> i need help. i have not learned this yet.
    15·1 answer
  • A concession stand at a baseball game sells hot dogs and boxes of popcorn. Justin buys a total of 9 snacks. The number of popcor
    13·2 answers
  • Help Please! <br><br> 5=(2m-b)/(m+b)
    9·2 answers
  • A rectangular prism has a volume of 90 cm^3 choose all the possible sets of lengths widths and heights for the rectangular prism
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!