Answer:
1) 15ft
2) 21m
Step-by-step explanation:
1) 10ft/4ft = x/6ft
multiply both sides by 6
[tex] \frac{10}{4} \times 6 = \frac{x}{6} \times 6[/tex]
60/4 = x
x= 15ft
2) 28m/x = 12m/9m
multiply both sides by 1/28
[tex] \frac{28}{x} \times \frac{1}{28} = \frac{12}{9} \times \frac{1}{28} [/tex]
1/x = 12/252
1/x = 1/21
by equivalence, x= 21m