Răspunsuri

2014-04-11T15:13:16+03:00
D- diferenta
s- suma
d=390

390=5s/8
5s=3120
s=624

a+b=624
a-b=390 => a=390+b

390+b+b=624
2xb=624-390
2xb=234
b=117

a=390+117
a=507

Vf:
507+117=624?
624=624 ADEVARAT
507-117=390?
390=390 ADEVARAT
1 5 1
2014-04-11T17:57:59+03:00
Fie x numarul mic
Numarul mare este x+390

390=\dfrac58(x+x+390)

2x+390=\dfrac{390\cdot8}{5}


2x=604-390

x=117 (numarul mic)

117+390=507 (numarul mare)

Poti face si verificarea sa constati ca este corect.