Question

# regra de três simples

c) 5 380
x 684

d) 500 x
175 700

Answer 1

5 380
x 684 = 380x=5x684
380x=3420                                               
x=3420/380
x=9


500 x
175 700 = 175x=350000
x=350000/175
x=2000

Answer 2

c-)

5 --- 380
x --- 684

380x=5.684
380x=3420
x=3420÷380
x=9

-------------------------------------------------------------

d-)

500 --- x
175 --- 700

175x=500.700
175x=350000
x=350000÷175
x=2000