Question

ME AJUDEM PFV
Calcule:

2 . 0,00001 + 3 . 0,00002
____________________ =
4 . 0,000001 + 0,000001

a) 90/11
b) 80/11
c) 70/11
d) 60/11

Answer 1

Ola

2 * 0.00001 + 3 * 0.00002 = 0.00008 

4 * 0.000001 + 0.000001 = 0.000005

x = 0.00008 / 0.000005
x = 16 

não entende as alternativas 

Answer 2

o,oooo1x2=0,00002      0,00002x3=0,000064x 0,000001=0,000004então0,00002+0,00006/0,000004+0,000001=0,00008/0,000005=8/100000/5/1000000=8/100000x 1000000/5=8000000/500000 não estou achando esse valor