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emmasim [6.3K]
3 years ago
5

which expressions represents a 20% discount off the price of an item that originally cost D dollars ​

Mathematics
2 answers:
Charra [1.4K]3 years ago
6 0

Answer:

D - (D/5)

Step-by-step explanation:

Let's imagine that D equals 100 dollars -

Well, we know that to get 20% of an amount, we need to divide the amount by five. So let's do that -

100 / 5 = 20

We now know that 20% of 100 dollars is equal to 20 dollars. We have now finished the first part. On to the second part.

We now need to take away 20% of 100 dollars off of 100 dollars - this is the price of the item after the discount.

100 - 20 = 80 dollars.

We now fit in D instead of 100 dollars -

D - (D/5)

Andreyy893 years ago
6 0
Pretty sure it’s d sorry if I’m to late haha
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Step-by-step explanation:

Here, the given system of equations is:

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Now, to find the solution of the system, SUBSTITUTE the value of y from equation  (1) in to the equation (2). We get ,

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Step-by-step explanation:

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