Question

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

Answer 1

Answer:

$15x+30y-140$

Step-by-step explanation:

$30(1/2x-2)+40(3/4y-2)$

$30(1/2x)+30(-2)+40(3/4y)+40(-2)$

$15x+-60+30y-80$

$15x+30y+-60-80$

$15x+30y+-140$

Answer 2

Answer:

$= 15x + 30y - 140$

Step-by-step explanation:

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

hope this helps you.