So the sun produces 3.9x10³³/ second
Using this ratio (3.9x10³³/ second) we can use the porpotions to calculate time taken (T) to produce 1.55x10⁷.
[tex] \frac{3.9(10^3) ergs}{1 second} = \frac{1.55(10^7)ergs}{T} [/tex]
Then isolate T and find the time
[tex] \frac{T3.9(10^3)ergs}{1 second} = {1.55(10^7)ergs[/tex]
[tex] T3.9(10^3)ergs = ({1.55(10^7)ergs)seconds[/tex]
[tex]T = \frac{(1.55(10^7)ergs)seconds}{3.9(10^3)ergs} [/tex]
[tex]T = \frac{(1.55(10^7)seconds}{3.9(10^3)} [/tex]
[tex]T = \frac{1.55}{3.9}(10^4)seconds[/tex]
[tex]T = 0.397(10^4)seconds[/tex]
[tex]T = 3.97(10^-^1)(10^4)seconds[/tex]
[tex]T = 3.97(10^3)seconds[/tex]
Thus it took 3.97x10³ seconds for 1.55x10⁷. of ergs to be produced
Hope that helped and if it did, a Brainliest rating would be much appreciated