lesson 2.7 percent of change - hortonville area …...college tuition: a recent percent of increase...
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Lesson 2.7
Percent of Change the ratio
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Cruise: The total number of passengers on cruise ships increased by 10% from 2007 to 2009. If there were 17.22 million passengers in 2009, how many were there in 2007?
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Cruise: The total number of passengers on cruise ships increased by 10% from 2007 to 2009. If there were 17.22 million passengers in 2009, how many were there in 2007?
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College Tuition: A recent percent of increase in tuition at Northwestern University, in Evanston, Illinois, was 5.4%. If the new cost is $33,408 per year, find the original cost per year.
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College Tuition: A recent percent of increase in tuition at Northwestern University, in Evanston, Illinois, was 5.4%. If the new cost is $33,408 per year, find the original cost per year.
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Sales Tax & DiscountsLuke had been saving up his allowance for weeks excited to buy Halo 4 at midnight on his birthday. If Halo 4 cost $59.99 how much would he have to save up total/final cost(include sales tax). Wisconsin sales tax is 5%(Outagamie County)
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Sales Tax & DiscountsMr. Hall is saving up to buy a new "manvan" (minivan) to hall around his three growing boys. The Honda Accord he would like to buy has a list price of $28,000. With a sales tax of 5.5% how much does he have to have in total? How much would he have to save up monthly to have all the money up front in 2 years?
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Sales Tax & DiscountsMr. Hall is saving up to buy a new "manvan" (minivan) to hall around his three growing boys. The Honda Accord he would like to buy has a list price of $28,000. With a sales tax of 5.5% how much does he have to have in total? How much would he have to save up monthly to have all the money up front in 2 years?
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Sales Tax & Discounts
Apple Inc has a promotion for schools like Fox West that buy iPads in bulk. Fox West receives a discount of 18% off the iPad 3 price of $499. What is the total cost(no sales tax) per iPad after the discount?
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spoiler alert!spoiler alert!spoiler alert!
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spoiler alert!
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1. original: 78
new: 125
percent
increase
finaloriginal =
original
r
100
finaloriginal =
original
r
100
• round to nearest whole percent
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3. original: 6 candles
new: 8 candles
percent
increase
finaloriginal =
original
r
100
new is the same as final• round to nearest whole percent
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5. finaloriginal =
original
r
100
• round to nearest whole percent
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