A book store is having a 30% off sale. Dairy of a wimpy kid books are now 6.30 each. What was the original price of the books
Question
Answer:
Answer: " $ 9.00 " .____________________________________________________
The original price of the each book was: " $ 9.00 " .
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Let "x" = the "original price" (in "dollars").
30% of "x" = (0.30)x = (0.3)x .
"x − (0.3x) = 6.30 ;
" 1x − 0.3x = 6.30 " ;
" (0.7)x = 6.3 " ;
Divide each side of the equation by "(0.7)" ;
to isolate "x" on one side of the equation; & to solve for "x" ;
" (0.7)x / (0.7) = 6.3 / (0.7) " ;
to get:
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→ x = 9 (dollars)
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Answer: " $ 9.00 " .
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The original price of each books was: " $ 9.00 " .
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solved
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10 months ago
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