All Answers 356066 Answers

Nvm, \(\frac{a^{-1}\left(a-1\right)}{b}=\frac{1-a^{-1}}{b}\)

CPhill: I think you may have read too much into this question!! I think EP's simple solution makes more sense!. Just another opinion.

v =  u    +  at        

       u    = 16     ,    a  is acting in opposite direction   so is negative,  so at =  -29.4

16 -  29.4   = -13.4  so ball is now falling back to earth at velocity of 13.4 m/s 

There are 240 animals in a farm. 40 goats are added and the fraction av goats is tripled. What is the new amount of goats?

Let the fraction of goats at the start = x/240

Then.....3 times this = 3(x)/240

And when we add 40 to the original number we have that the new fractional amount = (x + 40) / (240 + 40)  =

(x + 40) / 280

So we have that

( x + 40)/ 280   =  (3x)  / 240      cross-multiply

240(x + 40) = 280 (3x)   simplify

240x + 9600  = 840x    subtract 240x from both sides

9600 = 600x     divide both sides by 600

16 = x    this is the number of goats at the beginning...and the fractional amount = 16 / 240  = 1/15

At the end....the number of goats = 16 + 40 = 56......and the fractional amount at the end  = 56/280  = 1/5

Verify that 3(1/15)  indeed = 3/15  = 1/5

40 + x = 3x

40 = 2x

x = 20 goats originally

60 goats now

A crude diagram....

one and one sixth or 1 1/6 

divide 13 by 20 and you will have 0.65

had better, but im doing fine ^-^ you? 

d = (1/2)(9.8m/s^2)t^2     where d is the displacement

d = 4.9m/s^2 (0.25s)^2

d = 4.9(0.0625)m  =

0.30625 m

4 

??? One to one???

612/6 = 102

 ?= 102

19-8=11

why are you posting this on a math site

612/x = 6

612/6 = x      Use the calculator....

Tower is 18.11 m tall.

Try not to think of it as math, but as playing around with numbers

-11/6

Simple answer :  Yes     if they are balanced they will not affect the motion of the body.

Generally speaking, yes it can.

Go there.

1   a peephole?

2 mow

3 Mississippi?

4'w'

Slope intercept general form is y = mx + c, where m is slope and c is y-intercept.

Here we have:

-1 = m*0 + c, so that c = -1

and

-3 = m*2 -1 so that 2m = -2 so m = -1

y = -x - 1

.

1/3 times -3 is -1