Suma a 3 numere este 1.cat este al doilea numar,daca primul este ,iar al treileaeste dublul primului? ?

Hypotheticly a is the first number, b the second and c the last one.

a=9999, c=2a

a+b+c=100 000

if a+1=10 000 (no letter) then c= 2×(a+1-1)=2×(a+1)-2 so

a+1+b+2×(a+1)-2=100 000

b=72 000

the second number is as good as 72 000

Below

Step-by-step explanation:

You need to use SOH CAH TOA to find theta.

Looking at the triangle, we have the opposite side which is 9 and the adjacent side which is 10. This means you have to use Tangent to find theta.

Tan θ = opposite/adjacent

Tan θ = 9 / 10

       θ = tan inverse ( 9 / 10 )

       θ = 41.98

       θ = 42 degrees