FORMULAE AND VARIATIONS | Change of the subject | FORM 3 LEVEL | PAPER 2 QUESTIONS | SECTION AGiven that P = QXⁿ make n the subject of the formula and simplify your answer. (3mks)
 Form 3 Mathematics
Three quantities R, S, and T are such that varies directly as S and inversely as the square if T.
a) Given that R=480 when S=150 and T = 5, write an equation connecting R, S and T. b)(i)find the value of R when S = 360 and T = 1.5. (ii) Find the percentage change in R if S increases by 5% and T decreases by 20%.
answers
Form 3 Mathematics
Three quantities P, Q and R are such that P varies directly as Q and inversely as the square root of R. When P = 8, Q = 10 and R = 16. Determine the
equation connecting P, Q and R.
answer
Form 3 Mathematics
Two quantities P and r are connected by the equation p = krn. The table of values of P and r is given below
ANswer
Form 3 Mathematics
The mass of a wire m grams (g) is partly a constant and partly varies as the square of its thickness t mm. when t= 2 mm, m= 40g and when t=3 mm, m = 65g
Determine the value of m when t = 4 mm.
answer
Form 3 Mathematics
A quantity P is partly constant and partly varies inversely as a quantity q. Given that P=10 when p = 20 when q = 1.25, find the value of p when q = 0.5.
Answer
Form 3 Mathematics
Three variables p, q and r are such that p varies directly as q and inversely as the square of r.
(a) When p=9, q=12 and r = 2. Find p when q= 15 and r =5 (b) Express q in terms of p and r. (c) If p is increased by 10% and r is decreased by 10%, find; (i) A simplified expression for the change in q in terms of p and r (ii) The percentage change in q.
answers
|
Categories
All
Archives
December 2024
|
RSS Feed
|
Primary Resources
College Resources
|
Secondary Resources
|
Contact Us
Manyam Franchise
P.O Box 1189 - 40200 Kisii Tel: 0728 450 424 Tel: 0738 619 279 Tel: 0763 450 425 E-mail - sales@manyamfranchise.com |