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Unit 2: decimal, percents, ratio & proportions
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Solve for x: Hint any time you have three numbers in comparison you can solve the problem using proportion.
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A gasoline can holds 7 / 8 liter (L). How much will the can hold when it is 1 / 2 full? Remember that you are looking to find half of the current amount. If you had a 200 dollars and you were giving half of it away, how would you determine what half is?
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If Danielle spent $ 43.76 on groceries and gave the cashier $50.00. How much change should she get back? It’s asking for change, so what operation should we use in this problem. Remember change means that you will get something back from the original amount that was given.
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Max bought three CD’s for $12.25 each and two DVD’s for $5.50 each. What is the subtotal? Subtotal indicates that you are going to do what with the numbers. Make sure you account for all of the items that you have.
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Find the percent notation for 5.76 Convert 0.038 to a percent
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A photographer wants to enlarge a picture that has a length of 2.5 cm and a width of 3.5 cm. The enlarged picture has a width of 10.5 cm what must the length be? Hint any time you have three numbers in comparison you can solve the problem using proportion.
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The retail price is $4,000. The percent markup on cost is 20%. What is the cost? Mark-up, does this indicate and increase or decrease?
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Using the information given, calculate the percentage of sales for November; August $35,000, September $47,000, October $52,000, November $65,000, December $78,000, January $40,000. A. 15% B. 20% C. 18% D. 16.4%
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