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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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3 years ago

The triangles are similar

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Answer:

Part 1) $x=16\ units$

Part 2) $x=23\ units$

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Step-by-step explanation:

Part 1) we know that

If two triangles are similar

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In this problem

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Part 2) we know that

If two triangles are similar

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In this problem

$\frac{36}{12}=\frac{39}{(x-10)}\\\\3(x-10)=39\\ \\x=(39/3)+10\\ \\x=23\ units$

Part 3) we know that

If two triangles are similar

then

the ratio of their corresponding sides are equal

In this problem

$\frac{AB}{CD}=\frac{AE}{ED}$

substitute the values

$\frac{10}{4}=\frac{2x+10}{x+3}$

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