Home/Tag: Equations
30 11, 2018

Changing the Subject

By |2018-11-30T08:07:01+10:00November 30th, 2018|Tags: , , |Comments Off on Changing the Subject

Changing the Subject Go to the Changing the Subject Forum to see more questions or ask your own Worked examples Make i the subject of the equation: A = P(1 + i)² $$\frac{A}{P}=\frac{P(1+i)^2}{P}$$ we need to move everything away from the i, starting by dividing both sides by P [...]

28 09, 2018

Terminology

By |2019-04-15T10:22:06+10:00September 28th, 2018|Tags: , , |0 Comments

Network Terminology Go to the Network Forum to see more questions or ask your own Terms & Definitions Directed Network network with arrows on its edges, that indicate the direction Network a collection of connected objects Isomorphic Graph Graph/network diagram that represents the same information, is equivalent Vertices/Nodes the [...]

2 07, 2018

Fuel Consumption

By |2018-12-04T08:39:05+10:00July 2nd, 2018|Tags: , , |0 Comments

Fuel Consumption Go to the Fuel Consumption Forum to see more questions or ask your own Formulas used in Fuel Consumption Fuel Consumption L/1ookm Worked examples A motorist started a trip with a full tank of petrol and after travelling 540km refilled the tank. Given that the [...]

2 07, 2018

Equations

By |2018-12-03T15:33:13+10:00July 2nd, 2018|Tags: , , |0 Comments

Equations Go to the Equations Forum to see more questions or ask your own Worked examples Solve for x: $$\frac{{3x}}{4} - 5 = \frac{x}{5} + \frac{1}{2}$$ $$^{\times\cancel4\times5\times2}\frac{{3x}}{\cancel4} - 5^{\times4\times5\times2} = \frac{x}{\cancel5}^{\times4\times\cancel5\times2} + \frac{1}{\cancel2}^{\times4\times5\times\cancel2}$$ multiply everything by 4, 5 and 2 30x – 200 = 8x + 20 simplify 22x – 200 [...]

25 06, 2018

Substitution

By |2018-12-03T15:36:11+10:00June 25th, 2018|Tags: , , |0 Comments

Substitution Go to the Substitution Forum to see more questions or ask your own Worked examples  If $$I=\frac{E}{R+r}$$. find r if I = 12, E = 60 and R = 4. $$12=\frac{60}{4+r}$$ substitute all numbers into their corresponding letters $$12(4+r)=\frac{60}{\cancel{(4+r)}}^{\times\cancel{(4+r)}}$$ multiply both sides by 4 + r 48 + [...]

25 06, 2018

Formulae & Equations

By |2018-12-03T20:23:34+10:00June 25th, 2018|Tags: , , , |0 Comments

Formulae & Equations Go to the Formulae & Equations Forum to see more questions or ask your own Topics Covered in Formulae & Equations Substitution Expanding Brackets Indices Fraction & Negative Indices Changing The Subject Equations Equations with Indices Distance, Speed, Time [...]

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