Question

Q9. Determine if the following are in proportion,
(a) 12, 45, 48, 180
(b) 66, 121, 5, 6
(c) 28, 35, 8, 10

Answer 1

Step-by-step explanation:

a.

$\frac{12}{45} = \frac{4}{15} \\ \frac{48}{180} = \frac{4}{15}$

yes

b.

$\frac{66}{121} = \frac{6}{11} \\ \frac{5}{6} = \frac{5}{6}$

no not propertion

c.

$\frac{28}{35} = \frac{4}{5} \\ \frac{8}{10} = \frac{4}{5}$

yes