Obtain the formula fort the statement : when thrice a certain number is subtracted from 64, the result is 28.
2 - 3 x = 64
64 - 3 x = 28
28 = 3x + 64
None of these
Given make v the subject of the formula.
Given make x as the subject of the formula.
A number decreased by 15 is 35.Derive the formula
x - 15 = 35
15 - x = 35
35 - 15 = x
x -35 = 15
Given s = d/t . find d when s = 36 and t = 5
180
120
160
140
Given v2 = u2 - 2ft,make t subject of the formula.
t = 2f (u2 - v2)
t = 2f (u2 + v2)
The rule that the Perimeter (P ) if a rectangle is thrice the sum of its length (l ) and breadth (b ) is given by the formula _______.
P = 2 (l b )
P = ( l + b )
P = 3( l + b )
Frame a formula " The product of 3 consecutive numbers ( the smallest being x is 310).
x × ( x + 1) × (x + 3) = 310
x × (x + 2) × (x + 4) = 310
x × (x + 1) × (x + 5) = 310
(x + 1) × (x + 3) × (x + 5) = 310
If A = π r2 find A when r = 14 cm and π = 22/7 ?
516 cm2
616 cm2
716 cm2
916 cm2
Frame a formula for " perimeter (p) is twice the sum of its length (l) and breadth (b)
P = 2l + b
P = l + 2b
P = (l + b)2
P = 2(l + b)