week-5_ratios, proportions, and percent. topic: finding the final amount given the original amount...

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Week-5_Ratios, Proportions, and Percent

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Page 1: Week-5_Ratios, Proportions, and Percent. Topic: Finding the final amount given the original amount and a percentage increase or decrease

Week-5_Ratios, Proportions, and Percent

Page 2: Week-5_Ratios, Proportions, and Percent. Topic: Finding the final amount given the original amount and a percentage increase or decrease

Week-5_Ratios, Proportions, and Percent

Page 3: Week-5_Ratios, Proportions, and Percent. Topic: Finding the final amount given the original amount and a percentage increase or decrease

Topic:Finding the final amount given

the original amount and a percentage increase or

decrease

Page 4: Week-5_Ratios, Proportions, and Percent. Topic: Finding the final amount given the original amount and a percentage increase or decrease

Before:

NOW:

Dh 250

Dh ___ ?

Page 5: Week-5_Ratios, Proportions, and Percent. Topic: Finding the final amount given the original amount and a percentage increase or decrease

Before:

NOW:

Dh 250 Dh ___ ?

Step 1)

250 x 20% = 50Step 2)

250 – 50 = 200

200

Page 6: Week-5_Ratios, Proportions, and Percent. Topic: Finding the final amount given the original amount and a percentage increase or decrease

The price of oil has increased by 15% from last week.Last week, the price of oil was $120 per barrel.

a) How much is the decrease in price? _____________

b) How much is the price now? ____________

Page 7: Week-5_Ratios, Proportions, and Percent. Topic: Finding the final amount given the original amount and a percentage increase or decrease
Page 8: Week-5_Ratios, Proportions, and Percent. Topic: Finding the final amount given the original amount and a percentage increase or decrease

The price of oil has increased by 15% from last week.Last week, the price of oil was $120 per barrel.

a) How much is the decrease in price? _____________

b) How much is the price now? ____________

Step 1)

120 x 15% = 18Step 2)

120 + 18 = 138

$ 138

$ 18

Page 9: Week-5_Ratios, Proportions, and Percent. Topic: Finding the final amount given the original amount and a percentage increase or decrease
Page 10: Week-5_Ratios, Proportions, and Percent. Topic: Finding the final amount given the original amount and a percentage increase or decrease

447,000 x 8% = 35,760447,000 + 35,760 = 482, 760

Page 11: Week-5_Ratios, Proportions, and Percent. Topic: Finding the final amount given the original amount and a percentage increase or decrease
Page 12: Week-5_Ratios, Proportions, and Percent. Topic: Finding the final amount given the original amount and a percentage increase or decrease

36,000 x 14.3% = 5,14836,000 - 5,148 = 30,852

Page 13: Week-5_Ratios, Proportions, and Percent. Topic: Finding the final amount given the original amount and a percentage increase or decrease

Topic:Finding the final

amount given the original amount and a percentage increase

or decrease

Learn the topic in tour Aleks pie now.