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Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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A manager prices her new shoes at 40 % above the cost price. The cost price is $13.50. She then allows a discount of 25%. How much is she making on each new pair of shoes sold?
Hosea is given $100. Each day, he gains 1% on the total dollar amount he has, then he loses 1% of his total each night. If Hosea gains no other money, what will eventually happen to the total amount of money?
A local store is having a sale. All shoes are 40% off. If a pair of shoes normally costs $13.72 plus 7% sales tax, how much will it cost to buy the shoes during the sale?
A college radio station sponsors a contest once a week. One resident from a dormitory calls in and tries to answer 10 questions correctly. Each correct answer reduces the winnings by $25. Last week's contestant earned $350. How many answers were correct?
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If you have $10 with which to buy some pens for $1.75 each, how many can you buy?
An employee receives $20 in commission on sales amounting to $500. What is the employee's commission rate in this situation?
Mike Branson invested his summer earnings of $3000 in a savings account for college. The account pays 4.5% interest. How much will this amount to in 6 months Mike's savings will amount to $ in 6 months. (Round to the nearest cent as needed.)
if someone buys 6 cakes and 4 yogurts for $10.50. Another person buys 4 cakes and 8 yogurts for $11. how much is the cost of each item
The new watch costs 38.85, And the new bracelet costs 22.38. if Maddy buys both how much does she spend
A machine is sold for 42% of the original cost. If the original cost is $9255.00, find the selling price of the used machine.
Alyson hired a face-painter for a birthday party. The painter charged a flat fee of $55 $ 55 , and then charged $3.50 $ 3.50 per person. In the end, Alyson paid a total of $146 $ 146 . How many people used the face-painter’s service

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