To use the elimination method, you can add the two equations in a system of equations to eliminate one of the variables. Add the two equations.
---9z+y=10
10z - y= -9
What is the resulting equation?
A
0 + 2y = 1
B
X0 = 1
С
x + 0 = 19
D
19x + 2y = 19

Abank manager wants to encourage new customers to open accounts with principals of at least $2 comma 500. he decides to make a poster advertising a simple interest rate of 3%. what must the principal be if the bank manager also wants to advertise that one can earn $10 the first month? can the poster correctly say, "open an account of $2 comma 500 and earn at least $10 interest in 1 month! "?