Your rich uncle is giving you $100,000 on the condition that you will spend exactly half of the remaining amount each day (or as close to half as possible). Use the equation y = 100,000(0.5)^x to find out how much you will spend on day 8. Round to the nearest cent.
A. $40,000.00
B. $390.63
C. $988.76

Question

Your rich uncle is giving you $100,000 on the condition that you will spend exactly half of the remaining amount each day (or as close to half as possible). Use the equation y = 100,000(0.5)^x to find out how much you will spend on day 8. Round to the nearest cent.
	A.	$40,000.00
	B.	$390.63
	C.	$988.76

parthkohli · Answer

The equation is already given. So you just substitute x with 8.

anonymous · Answer

x = to the amount of days...so plug in 8 for x...

unklerhaukus · Answer

$$y = 100,000(0.5)^x,\qquad\qquad x=8$$
$$y = 100,000(0.5)^8=100,000\times\frac12\times\frac12\times\frac12\times\frac12\times\frac12\times\frac12\times\frac12\times\frac12$$
$$y=\frac{100,000}{2^8}$$