13 The price of a house decreased from 15,00,000 to 12,00,000. Find the percentage decrease

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Ответ:

autumnskye1

12.01.2023

Mathematics

3.53

Step-by-step explanation:

A=LW

L=x-2

w=x+3

A=10

(x+3)(x-2)=10

x^2+3x-2x-6=10

x^2+x-16=0

use quad. formula

$\frac{-1}{2} +\frac{\sqrt{65} }{2}$ (aprox 3.53)

$\frac{-1}{2} +\frac{\sqrt{65} }{-2}$ aprox. -4.53

we cant have an neg. area so 3.53's our best bet

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13 The price of a house decreased from 15,00,000 to 12,00,000. Find the percentage decrease​