Answer:
bc
Step-by-step explanation:
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{5x + 4y = -30
{3x - 9y = -18 | : 3
{5x + 4y = -30
{x - 3y = -6 | + 3y
{5x + 4y = -30
{x = 3y - 6
{5(3y - 6) + 4y = -30
{x = 3y - 6
{15y - 30 + 4y = -30 | + 30
{x = 3y - 6
{19y = 0 | : 19
{x = 3y - 6
{y = 0
{x = 3 · 0 - 6
{y = 0
{x = -6
Step-by-step explanation:
x² + 12x = -35
x² + 12x + 35 = 0
(x + 5) (x + 7) = 0
x = -5 or -7
Answer: -2/4 is smaller than -1/5
Step-by-step explanation: If you keep goin down on the negative scale then you will see that -1/5 comes before -2/4
X= = number of stereos sold; a = amount of money earned 250 + 25x = a x = 10 stereos
50x = a a = $500
