Answer:
x= -2, y = -2
Step-by-step explanation:
Solve the following system:
{2 y - 4 x = 4 | (equation 1)
{4 x - y = -6 | (equation 2)
Add equation 1 to equation 2:
{-(4 x) + 2 y = 4 | (equation 1)
{0 x+y = -2 | (equation 2)
Divide equation 1 by 2:
{-(2 x) + y = 2 | (equation 1)
{0 x+y = -2 | (equation 2)
Subtract equation 2 from equation 1:
{-(2 x)+0 y = 4 | (equation 1)
{0 x+y = -2 | (equation 2)
Divide equation 1 by -2:
{x+0 y = -2 | (equation 1)
{0 x+y = -2 | (equation 2)
Collect results:
Answer: {x = -2
, y = -2
Answer:
She will sell aproximately 13 dresses sold in 1 hour.
Step-by-step explanation:
22 5/8 ÷ 2 2/3 = 8.484375
So it can make 8.484375 pieces of ribbon
Answer:
(2y−1)(y−7)
Step-by-step explanation:
1) 2y^2-y-14y+7
2) y(2y−1)−7(2y−1)
3) (2y−1)(y−7)
7b^3/a^5
the negative needs to be brought to the bottom
