A book is on sale for 30% off. The sale price of the book is $14. What is the original price of the book
1 answer:
Since $14 is the price after a 30% discount then $14 is 70% of the original price.
$14/70=x/100 (100% would be the original price)
1400=70x or 1400/70 = $20!
You can double check the work by taking 30% off the $20 (10% would be $2, 30% would then be $6) 20-6=14!
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Hey There! If i got this down right, An = A1 + (n - 1)d Sn = A1 + A2 + A3 + ... + An A1 is given by Sn = n (A1 + An) / 2 For Example An = A1 + (n - 1)d = 6 + 3 (n - 1) = 3 n + 3 n = 50 Hope This Helps!!!
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Paul can type 60 words per minute and Jennifer can type 80 words per minute. Paul typing speed / Jenifer typing speed = 60/80 = 3/4. Paul type 3/4 as fast as Jennifer. Log in for more information.
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