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kherson [118]
3 years ago
9

Meghan paid $7 dollars for a book. This price included a 20% discount. What was the original price of the book?

Mathematics
1 answer:
astraxan [27]3 years ago
7 0
Original price of book = x
Discount = 20%
Price at which meghan purchased it = $7

x \times  (\frac{100 - 20}{100} ) = 7 \\ x \times  \frac{80}{100}  = 7 \\ x \times  \frac{4}{5}  = 7 \\ x = 7 \times  \frac{5}{4}  \\ x =  \frac{35}{4}  \\ x = 8.75
Original value of book was $8.75.

!! Hope It Helps !!
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