Chapter 9.2, Problem 50ES

To determine

(a)

Whether the statement, 'the quotient $a÷b$ is a ratio' is true or false.

To determine

(b)

Whether the statement, 'if $\frac{a}{b}=\frac{c}{d}$, then $\frac{b}{a}=\frac{d}{c}$ ' is true or false.

To determine

(c)

Whether the statement, 'if $\frac{a}{b}=\frac{c}{d}$, then $\frac{a}{c}=\frac{b}{d}$ ' is true or false.

To determine

(d)

Whether the statement, 'if $\frac{a}{b}=\frac{c}{d}$, then $\frac{a}{d}=\frac{c}{b}$ ' is true or false.