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Giving 20 points not alot but it's something :3 right aslo Hurry
Which expressions are equivalent to 30(1/2x-2)+40(3/4y-2) ?
a.45xy-220
b.15x-30y-200
c.15x+30y-200
d.15x+30y-64

Respuesta :

09pqr4sT

Answer:

[tex]15x+30y-140[/tex]

Step-by-step explanation:

[tex]30(1/2x-2)+40(3/4y-2)[/tex]

[tex]30(1/2x)+30(-2)+40(3/4y)+40(-2)[/tex]

[tex]15x+-60+30y-80[/tex]

[tex]15x+30y+-60-80[/tex]

[tex]15x+30y+-140[/tex]

Hi1315

Answer:

[tex]= 15x + 30y - 140 \\ \\ [/tex]

Step-by-step explanation:

[tex]30( \frac{1}{2} x - 2) + 40( \frac{3}{4} y - 2) \\ \frac{30x}{2} - 60 + \frac{120y}{4} - 80 \\ 15x - 60 + 30y - 80 \\ = 15x + 30y - 140 \\ [/tex]

hope this helps you.

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