O 5. The number 45 is 25% of what number? 16. 6. The number 126 is 35% of what n
ID: 3168715 • Letter: O
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O 5. The number 45 is 25% of what number? 16. 6. The number 126 is 35% of what number? The circle graph below shows each continent/region's percent of Earth's land. Use this graph for Exercises 7 through 10. See Example 3 17 Continent/Region Land Aren (percent of Earth's land North America 14% Latin America and the Caribbean / 14% Europe 15% Africa 20% Oceania 6% Antarctica 10% Asia 21% 7. What percent of land is not included in North America? 8. What percent of land is in Asia, Antarctica, or Africa? 9. If Earth's land area is 56.4 million square miles, find the land area of Europe. 10. If Earth's land area is 56.4 million square miles, find the land area of Africa. Solve. If needed, round answers to the nearest cent. See Example 4. 11. A used automobile dealership recently reduced the price of a used compact car by 8%. If the price of the car before dis- count was $18,500, find the discount and the new price. 12. A music store is advertising a 25%-off sale on all new releas es. Find the discount and the sale price of a newly released CD that regularly sells for $12.50. total cost if a 15% tip is added to the given cost. total cost if a 20% tip is added to the given cost. 13. A birthday celebration meal is $40.50 including tax. Find the 014. A retirement dinner for two is $65.40 including tax. Find theExplanation / Answer
5)
Let the required number be x
45 is 25 % of x
That means
45 = 25% of x
45 = 25*x/100
45 = 0.25*x
x = 180
Answer: 180
6)
Let the required number be x
126 is 35 % of x
That means
126 = 35% of x
126 = 35*x/100
126 = 0.35*x
x = 360
Answer: 360
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