First, change 2y to an improper fraction y. In order to divide the fractions, the divisor y must be inverted y and then multiplied by the first fraction. The correct answer is y, choice b. [Pg.320]

Phosphorus trichloride /7779-72-2y M 137.3, b 76 , df 1.575, n 1.515. Heat it under reflux to expel dissolved HCl, then distil it. It has been further purified by vacuum fractionation several times through a 5° trap into a receiver at-78°. [Forbes/norg SyntTz II 145 7946.] HARMFUL VAPOURS. [Pg.482]

Estimates of the contrasts of the 2y fractional factorial design and their relations with the effects of the complete design. The values in boldface are the most significant [Pg.160]

Desig- nation Nominal Size Surface Area (m g) Total Void Fraction Diu X 10 (cm /sec) Average Tortuosity Factor t, Parallel-Path Pore Model r. = 2y.is, (A) r. Based on Avmge Pore -Radius [Pg.565]

THE SUM OF two mixed numbers may not have a fractional part. Sometimes, the fractional parts of two mixed numbers add up to a whole number. For example, look at 67 + 1 2y. Add the whole number parts of each number 6 + 12 = 18. Add the fractions 7 + 7 = [Pg.64]

In this improper fraction, the numerator is 7 and the denominator is 3 7 divided by 3 is 2, with 1 left over. The whole number part of our answer is 2, and we express the remainder as a fraction. Because the improper fraction has a denominator of 3, our remainder has a denominator of 3 7 divided by 3 is 2y. [Pg.60]

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