Mathematics, 18.10.2019 11:50 fardinhaque6113
Maria and edwin have $23.00 each to spend at a book fair, where all students receive a 25% discount. they both want to purchase a copy of the same book, which normally sells for $26.50 plus 10% sales tax. to check if she has enough to purchase the book, maria takes 25% of $26.50 and subtracts that amount from the normal price. she takes 10% of the discounted selling price and adds it back to find the purchase amount. edwin takes 75% of the normal purchase price and then computes 110% of the reduced price. is maria correct? is edwin correct? do they have enough money to purchase the book? explain your answer using complete sentences, and show your work.
Answers: 1
Mathematics, 21.06.2019 13:00
Shiny white dental insurance costs $258 per year. approximately one-third of insured people need a filling, which averages $110 each. 80% of insured people get a preventive check-up each year, and the average cost of this visit is $95. if you consider shiny white’s income and expenses, what is the expected value of each insured customer?
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Mathematics, 21.06.2019 17:10
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What is always true when two whole numbers are subtracted?
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Maria and edwin have $23.00 each to spend at a book fair, where all students receive a 25% discount....
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