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Thepotemich [5.8K]
4 years ago
12

Polynomials change of subject formulas​

Mathematics
1 answer:
SOVA2 [1]4 years ago
8 0
Example:
To make ‘u’ the subject of the formula in

V = u + at

*subtract ‘at’ to both sides*
V -at = u + at - at

Result:
V - at = u

So the answer would be

u = V - at
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<span>An actor invested some money at 9% simple interest, and $42,000 more than three times the amount at 12% per annum. </span><span>What we are after is amounts of interest invested at 9% and at 12%. Let's call them x and y respectively.

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