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6 - Mathematics M1.AL.6 - Change of Subject

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  • ✓change the subject of formulae (linear, fractional and involving brackets)
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Recall the hire-purchase formula: HP = D + nM (D = deposit, n = number of months, M = monthly payment). What if you know HP, D and M and want to find n? You'd rearrange the formula, making n the SUBJECT. CSEC Mathematics constantly asks you to rearrange formulae.
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💡Engage
Recall the hire-purchase formula: HP = D + nM (D = deposit, n = number of months, M = monthly payment). What if you know HP, D and M and want to find n? You'd rearrange the formula, making n the SUBJECT. CSEC Mathematics constantly asks you to rearrange formulae.
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