Question

Alguien ayude porfa...

Answer 1

Respuesta:

b) Eliana 75 dolares

Explicación paso a paso:

A = E/3

3A = E

A = 5R/4

4A/5 = R

A + E + R = 120

A + 3A + 4A/5 = 120

(5A + 15A + 4A)/5 = 120

24A = 120(5)

24A = 600

A = 600/24

A = 25

E = 3A

E = 3(25)

E = 75

R = 4A/5

R = 4(25)/5

R = 100/5

R = 20