a company sells circular mirrors. the price P pounds is proportional to the square of its radius r cm. a mirror with radius 20cm has a price of £36. find a formula for p in terms of r

P = 0.09r²

Step-by-step explanation:

Price, p is proportional to the square of its radius, r

P = k*r²

a mirror with radius 20cm has a price of £36

P = k * r²

36 = k * 20²

36 = k * 400

36 = 400k

k = 36/400

k = 0.09

Substitute the value of k into the equation:

P = k * r²

P = 0.09 * r²

P = 0.09r²

the answer is 0.000652422

but if you ment to ask what is 6131 divided by 4, it is 1532.75.

step-by-step explanation:

i need more details

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