earles
earles
11-04-2017
Mathematics
contestada
What is x and what is y if
50x + 30y = 5450
Respuesta :
Аноним
Аноним
15-04-2017
[tex]50x + 30y = 5450:\text{Solving for x}[/tex]
[tex]10(5x+3y)=5450 [/tex]
[tex]5x+3y= \dfrac{5450}{10} [/tex]
[tex]5x+3y=545 [/tex]
[tex]5x=545-3y [/tex]
[tex]x= \dfrac{545-3y}{5} [/tex]
* * * * * * * *
[tex]50x + 30y = 5450:\text{Solving for y}[/tex]
[tex]10(5x+3y)=5450 [/tex]
[tex]5x+3y= \dfrac{5450}{10} [/tex]
[tex]5x+3y=545 [/tex]
[tex]3y=545-5x [/tex]
[tex]y=\dfrac{545-5x}{3} [/tex]
[tex]y= \dfrac{5(109-x)}{3} [/tex]
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