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10) → Michael paid $8.40 for a DVD after having been given a 30% discount. What was the presale price of the DVD? On my elementary math class on college I Don’t know where to st…

10) → Michael paid $8.40 for a DVD after having been given a 30% discount. What was the presale price of the DVD? On my elementary math class on college I Don’t know where to st…
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10) → Michael paid $8.40 for a DVD after having been given a 30% discount.

What was the presale price of the DVD?
On my elementary math class on college I Don’t know where to start this needs to be shown full work

10) → Michael paid $8.40 for a DVD after having been given a 30% discount. What was-example-1
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User Abanmitra
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8.4k points

1 Answer

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Answer:

Explanation:

If the presale price is
x,

then
x*(1-0.30)=8.40\\0.70x=8.40\\x=8.40/0.70=12.0\\

Thus the presale price is $12.0

answered
User Elevendollar
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7.4k points
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