Maths question here re: mr patel's car and a time/value graph..

nicketh

Helo, could someone help me with this? i havent got a clue

Reply 1

Moonkin

1600=p
0.5=q

Reply 2

turgon

Revise the compound interest/decay bit. As usual, some1 please check if I got this right and correct me if I havnt. :smile:

Using the graph, we can substitute some values in the V=pq^t bit to get

400=1600(q^2)

as a result, V=400, and p=1600, and t = 2

400/1600 = q^2
1/4 = q^2
1/2 = q

Now you got the values for p, and q, use the in the second part to get your next answer.

Reply 3

MOLEYMOO

lol racial integration makes me laugh when they put it in exams

Reply 4

Moonkin

MOLEYMOO

lol racial integration makes me laugh when they put it in exams

LOL, I can't stop laughing at what you said. rofl

Reply 5

nicketh

Not being racist, but It's true, three quarters of the people are called Bhakti or Ahmed or mohamed or something.

And whenever John says something and Nasir says something else, it always sayd "John is wrong. explain why."

:|

Reply 6

Moonkin

We need some African names in there, not just asian. Or mabye just typical John Smith

Reply 7

nicketh

This deserves a new thread. :biggrin:

Reply 8

motiv3

hahahah moleymoo is absolutely correct!

and why cant the examiners think of something original...like i remember once for a probability question they based it around 'Maths School'...why....and for cumulative frequency, they once based it around a kid who timed how long it took him to read a page...wow...

Reply 9

turgon

I m asian, and to be honest I really don't care what names they put in, as long as the question's easy :biggrin:

Reply 10

motiv3

turgon

I m asian, and to be honest I really don't care what names they put in, as long as the question's easy :biggrin:

hahah thats true!

Reply 11

kadhumia_flo

Its actually not really nice when they say "Ahmed is investigating how many people got over 50 in the exam" .... its like hes got no life lol

and this is the working out in latex: