Download PDF by Yang J.T., Yang J.N.: An outline of scientific writing for researchers with

By Yang J.T., Yang J.N.

ISBN-10: 9810224664

ISBN-13: 9789810224660

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How much acetic acid must be added to get the acetic acid up to 5%? 69. Mixing Gasoline A chemist has 500 gallons of gasoline that contain 5% ethanol. How many gallons of gasoline containing 12% ethanol should she add to get a mixture that contains 10% ethanol? 30 ft x Figure for Exercise 61 62. Depth of a Reflecting Pool A rectangular reflecting pool with a horizontal bottom is 100 ft by 150 ft and contains 200,000 gal of water. How deep is the water in the pool? 63. Olympic Track To host the Summer Olympics, a city plans to build an eight-lane track.

2 shows the computations and the check. Note how the ANS key is used. ᭤TRY THIS. Solve 2 1 4 = with the aid of a calculator. 7 ■ Equations Involving Absolute Value To solve equations involving absolute value, remember that 0 x 0 = x if x Ú 0, and 0 x 0 = -x if x 6 0. The absolute value of x is greater than or equal to 0 for any real number x. So an equation such as 0 x 0 = -6 has no solution. Since a number and its opposite have the same absolute value, 0 x 0 = 4 is equivalent to x = 4 or x = -4.

M.? 2 1. Solve dx + dy = w for y. 3. How many liters of water should be added to 3 liters of a 70% alcohol solution to obtain a 50% alcohol solution? 2. If the length of a rectangle is 3 feet longer than the width and the perimeter is 62 feet, then what is the width? LINKING Solid waste (millions of tons) concepts... S. gov). 78, where w is in millions of tons and n is the number of years since 1960. 150 100 Recovered 50 0 30 10 20 Years since 1960 For Individual or Group Explorations 40 a) Use the graph to estimate the first year in which the United States generated over 100 million tons of municipal solid waste.

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An outline of scientific writing for researchers with English as a foreign language by Yang J.T., Yang J.N.


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