91Ó°ÊÓ

complete each statement.

If$4:t=8:9$then$8t=?$

Complete the statement.

If$\frac{c}{d}=\frac{4}{7},$then$\frac{d}{c}=\frac{?}{?}$,

complete each statement.

If$\frac{a}{4}=\frac{b}{7},$then$\frac{a}{b}=\frac{?}{?}$

ABCD is a parallelogram. Find the value of each ratio.

$AD:perimeterofABCD$

Complete the statement.

If$\frac{e}{f}=\frac{5}{9},$then$\frac{e}{5}=\frac{?}{?}$

Is the ratio$a:b$always, sometimes, or never equal to the ratio$b:a$? Explain.

Express the ratio in simplest form.

An office copy machine can make a reduction to$90\%$ , thus making the copy slightly smaller than the original. What is the ratio of the length of a line of text in the original to the length of a copy of that line?

$x=12,y=10,andz=24$.Write each ratio in simplest form.

$x\text{to}y$

complete each statement.

If$\frac{a}{4}=\frac{b}{7},$then$\frac{a}{b}=\frac{?}{?}$

Complete the statement.

If$\frac{g}{h}=\frac{j}{8}$then$\frac{j}{g}=\frac{?}{?}$