Melody

\(60\times \frac{1}{3}\\ =\frac{60}{1}\times \frac{1}{3}\\ =\frac{60\times1}{1\times3}\\ =\frac{60}{3}\\ =20\)

AND

\(60\times \frac{1}{3}\\ = \frac{1}{3}\times60\\ = \frac{1}{3}\;\;of\;\;60\\ =20\\ because\\ 20+20+20=60\)

4z−(−3z)

\(=4z - - 3z\\ =4z +3z\\ =7z\\ \)

Your triangle is described well enough.  I assume it is triangle ABC but what is D  ??

Press the = a second time, that usually works.  :)

Thge easiest way to do a question like this is to think about the graph

f(x)= (x-8)(x+5)

This is a concave up parabola.  The roots are at  x=8  and  x=-5

Since it is concave up it is the bit inbetween these points that falls BELOW the x axis.  and that is where f(x)<0

The ends are where f(x)>0

so      x<-5    and   x>8

here is the graph.

Are you gong to respond to me vest4R ??

There is not enough info given here.  :(

I am jsut playing ....

farhan cycles the first part of a 150 km journey at an average speed of 35km/h.

x km at 35km/hour  that is  

\(\frac{x}{35} hours\)

If he takes 4.5 hours for his entire journey, find the distance that he cycles.

(150 - x)   km left

\(4.5 - \frac{x}{35} =\frac{ (4.5*35-x)}{35} = \frac{157.5-x}{35}\;\;hours\;\;left\)

\((150-x)\div \frac{157.5-x}{35}\;\;km/hour\\ \frac{35(150-x)}{157.5-x}\;\;km/hour\\\)

Hi vest4R,

"I believe -5>x>8 is correct? apparently not?"

this says

-5 is greater than x and x is greater than 8 ...

if -5 is greater than x then x must be less than -5

if x is less then -5 how can it be greater than 8  ???

See my problem?

That sounds right to me EP.

Oh

What is black and white and goes round and round?

A penguin in the washing machine! 

Ok ok it is not my fault.  I am looking after a 4 year old and I get ALL the good jokes  LOL

1+1+1+1+1+1+1+1+1+1+1x0+1

= 10+0+1

=11