Question

ayúdenme porfa, es para hoy y no recuerdo nada :(

Answer 1

Respuesta:

4.1: 12 + 13 = 25

x + (x + 1) = 25

2x = 24

x = 12

25 - 12 = 13

4.2: Andrea = 65,  Samuel = 45

x + (x + 20) = 110

2x = 110 - 20

x = 45

110 - 45 = 65

4.3: Martín = 10,  Sebastian = 5

x + (x + 5) = 15

2x = 10

x = 5

15 - 5 = 10

4.4: Juana = 39, Amparo = 34

x + (x + 5) = 73

2x = 68

x = 34

73 - 34 = 39

4.5: Padre = 36, Hija = 12

x + 3x = 48

4x = 48

x = 12

48 - 12 = 36

4.6: Mesas = 20, Sillas = 10

2x + (x + 6) = 36

3x = 30

x = 10

30 - 10 = 20

4.7: Alquiler 875 = 39 kilómetros

25 x 4 = 125

39 x 4 = 875

Espero que te sirva