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3 years ago

Takwanna saw a cookware set she liked on sale for $145 off. The original price of the cookware was $312. Find the sale price.

Mathematics

1 answer:

alex41 [277]3 years ago

8 0

Step-by-step explanation:

you can't use a calculator ?

that is all that is needed.

the original price $312.

it is $145 off.

so, the actual sales price is : 312 - 145 = $167

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Answer:

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Step-by-step explanation:

First of all, let one part of it be " $x$ "

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Now to solve this :

The area of the square = $L^2$

The area of one part of the square = $x^2$

The area of the other part of the square = $(200-x)^2$

$9x^2= (200-x)^2\\9x^2=40000-400x+x^2$

Now, add, $-4x^2$ to both the sides :

$9x^2-9x^2=40000-400x+x^2-9x^2\\-1(8x^2+400x-40000)=0$

Now, take out the "8" which is common :

$-8(x^2+50x-5000)=0$

Now, divide it by $-8$ :

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$x=-100$ or $50$

So, now we know that :

One of the part is = $50cm$

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Thus the perimeter of the larger square is = $150cm$

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Answer:

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Step-by-step explanation:

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