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3 years ago

A store is going out of business. Everything is marked down 40%. How much do you pay now for an item that used to cost $150?

Mathematics

1 answer:

barxatty [35]3 years ago

6 0

Answer : $60

Steps for Solving :

$150/10 (to get 10 parts)
=15

15•4 (to get 40%)
=60

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In the diagram, the triangle has angles 90 and 45. So the other angle in the triangle must be 45 degrees as well. (180 - 90 -45 = 45)

This means it is an isosceles triangle (since two angles are the same), so the two legs have the same length.

So we can say that length of leg1 = x, and the length of leg2 also equals x

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leg1 = x

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2x^2 = 16^2

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x^2 = 128

x = √(128)

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