Question

pf me ajudem nessa questão (55pts)

Answer 1

12^2 = 9 . DC

DC = 144/9
___________

15 . x = 12 . BC

15x = 12 (9 + 144/9)

15x = 12 ( (81 + 144) / 9 )

15x = 12 . 225/9

15x = 4 . 225 / 3

3 . 15x = 4 . 225

3x = 4 . 15

x = 60/3

x = 20

Answer 2

Resposta:

12^2 = 9 . DC

DC = 144/9

___________

15 . x = 12 . BC

15x = 12 (9 + 144/9)

15x = 12 ( (81 + 144) / 9 )

15x = 12 . 225/9

15x = 4 . 225 / 3

3 . 15x = 4 . 225

3x = 4 . 15

x = 60/3

x = 20

Explicação passo-a-passo: