Question

URGENT DAU COROANA
Suma a doua numere este egala cu 91. Aflati numerele, stiind ca al doilea numar reprezinta 75 % din primul numar

Answer 1

a+b=91

b=$\frac{75}{100}*a= \frac{3}{4}*a$

a+$\frac{3a}{4}=91$ (aducem la acelasi numitor)

$\frac{4a}{4}+ \frac{3a}{4}=91$

[tex] \frac{7a}{4}=91 =\ \textgreater \ 7a=91*4=364 a=364:7 a=52[/tex]

a+b+91
52+b=91
b=91-52
b=39

Answer 2

a si b
a+b=91
b=75/100 * a => b=3/4 a =? 4b=3a

3a+3b=273
7b=273
b=39=> a=91-39 => a=52