For this problem, you will want to guess and check until you find the right solution. How many years does it take for $100 to reach $1 million dollars? The rate is at 5% with it being compounded twice a year. Round to a whole year. Hint: You may want to start with numbers above 100 years!\

189 years = 1011061.38575 = 1 million, 11 thousand and 61 and 38 rounded up to 2dp $35011061.39

Step-by-step explanation:

100(1 + 0.05)^188=962915.605474

100(1 + 0.05)^189=1011061.38575

It cannot be 188 years.

But if we tried 189 this would make just over 1 million.= $10011061.36

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18