abarragan170 abarragan170

12-12-2019
Mathematics

contestada

X+Y=100
4.5X+20Y=822
Elimination, graphing,and substitution methods.

Respuesta :

12-12-2019

Answer:

y=10

4 SX +20 Y= 822

Elimination

X - 10 -4

UX - 822-20Y

6.5

10 -4 = 822-201

45

- 4.5 = 822 - 204

15.54=774

4 = 90:13

= -40.129

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