smc-4362-30-Rearrange and substitute

EXAMCOPY Algebra, STD1 A1 2019 HSC 34

Given the formula , calculate the value of when and . (3 marks)

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Equations, SMB-011

The daily energy requirement, (kilojoules), for a person of mass (kilograms) is calculated using the rule .

For Elijah, .

What is Elijah's mass? (2 marks)

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Algebra, STD1 A1 2019 HSC 34

Given the formula , calculate the value of when and . (3 marks)

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Algebra, STD2 A1 2015 HSC 28d

The formula is used to convert temperatures between degrees Fahrenheit and degrees Celsius .

Convert 3°C to the equivalent temperature in Fahrenheit. (2 marks)

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Algebra, STD2 A1 2007 HSC 24b

The distance in kilometres () of an observer from the centre of a thunderstorm can be estimated by counting the number of seconds () between seeing the lightning and first hearing the thunder.

Use the formula to estimate the number of seconds between seeing the lightning and hearing the thunder if the storm is 1.2 km away. (1 mark)

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