Formulae

Formulae refers to mathematical relationships between different symbols, letters and numbers

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Subject of the formula example

Find U the subject of the formula

a =

\frac{V - U}{t}

Solution:

\frac{a}{1} = \frac{V - U}{t}

at = V - U

at - V = -U

\frac{at - V}{-1} = \frac{-U}{-1}

-at + V = U

Answer: U = -at + V

Given the formula V = at + U, Find the Value of V if a = 100, t= 2 and U = 9

Solution:

V = at + U

V = 100\times2 + 9

V = 200 + 9

V = 209

Answer: 209

Find the density of an object given that the mass = 500kg and volume = 100 ${cm}^{3}$ ?

Formula is:

Mass = Density \times Volume

Solution:

500 = Density \times 100

\frac{500}{100} = \frac{Density}{100}

Density = 5

Answer: Density = $5 \frac{Kg}{{cm}^{3}}$