Emily buys a toaster during the sale of 10% off if ellen pays $36 what was the original price?

$40

Step-by-step explanation:

Original price - discount = sales price

discount = original price * percent off

Substituting this in

Original price - original price * percent off = sales price

Factor out the original price

Original price (1-percent off) = sales price

We know the sales price = 36

and we know the percent off = 10 percent = .1

Substituting in

Original price (1-.1) = 36

Original price (.9) = 36

Divide both sides by .9

Original price *.9/.9 = 36/.9

Original price = 40

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