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baherus [9]
3 years ago
9

If the length of the side of a square is 3×-y what is the area of the square in terms of x and y

Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
5 0
(3x -y)(3x-y )= 9x^2 - 6xy + y^2
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Answer:

9 labours

Step-by-step explanation:

In order to solve this, we must know which kind of proportionality is this. There are two types of proportions, direct and indirect/inverse proportions. In direct proportion, if one quantity increases, the other quantity also increases.

In indirect proportion, if one quantity increases, the other decreases and vice versa.

As per this question, we know if the number of labour increases, the number of days to complete a work decreases, thus proving that this is an indirect/inverse proportion.

6 labours => 12 days

x labours =>  8 days

Since its an inverse proprotion, multiply 6 with 12, and x with 8.

8x = 6 × 12

x = \frac{6*12}{8}

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