carolyn415 carolyn415
  • 01-01-2021
  • Mathematics
contestada

.If 65+5y = 82, 3x +23= 54 and 5z +43= 110, find 3x+ 5y +5z

Respuesta :

oppongbright615
oppongbright615 oppongbright615
  • 01-01-2021

Step-by-step explanation:

65+5y=82

5y=82-65

5y=17

y=17/5=3.4

3x+23=54

3x=54-23

3x=31

x=31/3=10.3

5z+43=110

5z=110-43

5z=67

z=67/5=13.4

3x+5y+5z3.

3(3.4)+5(10.3)+5(13.4)

10.2+51.5+67

128.7

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