(1)
given [tex]\frac{j}{6}[/tex] = [tex]\frac{9}{10}[/tex] ( cross- multiply )
10j = 54 ( divide both sides by 10 )
j = [tex]\frac{54}{10}[/tex] = [tex]\frac{27}{5}[/tex] ← in simplest form
(9)
let h be the hours worked daily , then
3h = 20 [tex]\frac{2}{3}[/tex] = [tex]\frac{62}{3}[/tex] ( divide both sides by 3 )
h = [tex]\frac{62}{3}[/tex] ÷ 3
= [tex]\frac{62}{3}[/tex] × [tex]\frac{1}{3}[/tex] = [tex]\frac{62}{9}[/tex] = 6 [tex]\frac{8}{9}[/tex]
She worked 6 [tex]\frac{8}{9}[/tex] hours each day
