Respuesta :

apologiabiology
so 1040 out of 2600 means 1040/2600=104/260=26/65

percent means part out of 100
so x%=x/100

so 26/65 is equal to x/100
26/65=x/100
multiply both sides by 100
2600/65=x
simplify
2600/65=40=x

answer is 40%