Wednesday
September 17, 2014

Homework Help: maths, variations

Posted by hayley on Tuesday, December 18, 2007 at 6:01am.

i'm not sure how this question works

the number of hours (h) taken to paint a picture is inversely proportional to th number of pupils (p) painting it. it takes 4 pupils 3 hours to finish painting it assuming all pupils work at the same rate.

a) find an equation connecting h and p
is this correct? : h=-kp

b) find how much longer it would take if one of the pupils is not painting.
(i'm not sure how to do)

c) find the additional number of pupils required if the painting is to be completed in 2 hours.

i would appreciate if you could explain detailedly with the help of workings! thanks!

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

maths, variations checking! - question: given that y is inversely proportional ...
math - A man can paint a fence in 8 hours. Another man can paint that fence in ...
Math - I seem to be having problems setting up Linear Programming questions. For...
Math - Jim is paid overtime when he works more than 40 hours of per week. Write ...
maths - can you explain to me how to do this question i know i have to use ...
Maths - The Wellbuilt Company produces two types of wood chippers, Deluxe and ...
Inverse Variation - Help me please.. Explain also :( 1. E is inversely ...
physics - For a particular type of wave in a particular medium why must f and ...
math - 10. A house painter can finish a house in 6 hours. His partner can finish...
Math - There are 21 pupils who study Maths, 29 pupils who study french, 26 ...

Search
Members