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3 years ago

11

An eight-month used stereo system was sold for $255.75. This was one third (1/3) the amount of what this system originally cost.

What was the original cost of this set?

1 answer:

Alex3 years ago

4 0

From the givens, we know that 1/3 of the original cost is $255.75

Assume that the original price of the stereo is y, therefore:
(1/3) y = 255.75
y = 3 x 255.75

The original price of the stereo is $767.25

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vazorg [7]

Answer:

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Step-by-step explanation:

The question has unclear information.

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Given

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Required

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From the question, we have that:

ABC is right angled at B

So, when DB bisects ABC, it means that DB divides ABC into two equal angles.

i.e.

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Substitute CBD for ABD in $CBD + ABD = 90$

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Step-by-step explanation:

<u>Given quadratic equation</u>:

$y = x^2 - 6x+7$

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