Frame a formula for 1/5th of number x is 3 less than 20.
5x = 20 -3
5x = 3 - 20
x/5 = 20 - 3
x/5 = 3 - 20
Frame a formula for " A number x multiplied by itself is 25 more than the number".
2x2 = 25
2x2 + x = 25
x2 = x + 25
x2 + 25 = x
Given make x as the subject of the formula.
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
In formula P = 2 (l x b ), make l the subject.
l = 2b - p/2
l = 2 -2b/p
l = p - 2/2b
l= p - 2b/2
A number decreased by 15 is 35.Derive the formula.
x - 15 = 35
15 - x = 35
35 - 15 = x
x -35 = 15
Find the value of f, f = uv/(u +v) if u = 7cm & v = 3 cm
2.1cm
21cm
7 cm
0
A statement of equality of two mathematical expression is called an __________.
Expression
Formula
Equation
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
Let the simple interest (S.I) is given by if we make P as the subject, the formula become __________.
