tailieunhanh - Engineering Mathematics 4 Episode 2

Tham khảo tài liệu 'engineering mathematics 4 episode 2', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | CALCULATIONS AND EVALUATION OF FORMULAE 29 Use the table to determine a the number of millimetres in inches b a speed of 50 miles per hour in kilometres per hour c the number of miles in 300 km d the number of kilograms in 30 pounds weight e the number of pounds and ounces in 42 kilograms correct to the nearest ounce f the number of litres in 15 gallons and g the number of gallons in 40 litres. a b c d e f g inches X cm cm cm X 10 mm mm 50 . 50 X km h km h 300 300 km miles miles 30 30 lb 22 kg kg 42 kg 42 X lb lb lb X 16 oz oz 6 oz correct to the nearest ounce Thus 42 kg 92 lb 6 oz correct to the nearest ounce. 15 gallons 15 X 8 pints 120 pints 120 120 pints 22 litres litres 40 litres 40 X pints pints pints gallons gallons 8 Now try the following exercise Exercise 15 Further problems conversion tables and charts 1. Currency exchange rates listed in a newspaper included the following Italy 1 euro Japan 1 185 yen Australia 1 dollars Canada 1 Sweden 1 kronor Calculate a how many Italian euros will buy b the number of Canadian dollars that can be purchased for c the pounds sterling which can be exchanged for 14 040 yen d the pounds sterling which can be exchanged for Swedish kronor and e the Australian dollars which can be bought for 55 a euros b c d e dollars 2. Below is a list of some metric to imperial conversions. Length cm 1 inch km 1 mile Weight 1 kg lb 1 lb 16 ounces Capacity 1 litre pints 8 pints 1 gallon Use the list to determine a the number of millimetres in 15 inches b a speed of 35 mph in km h c the number of kilometres in 235 miles d the number of pounds and ounces in 24 kg correct to the nearest ounce e the number of kilograms in 15 lb f the number of litres in 12 gallons and g the number of gallons in 25 litres. a 381 mm b km h c km d 52

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