The linear combination method is applied to a system of equations:
(4x + 10y = 12)one-half
(10x + 25y = 30) – one-fifth
2x + 5y = 6
–2x – 5y = –6
0 = 0

Find dy/dx using implicit differentiation ln(20+e^xy)=y

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42