Answer:
66.475
Step-by-step explanation:
Answer:
x=amount invested at 7%
2x=amount invested at 8%
3x=amount invested at 9%
interest=principal*rate*time (time=1 year)
$150=0.07x+0.08*2x+0.09*3x
$150=0.07x+0.16x+0.27x
$150=0.50x
$1500=5x
x=$300 invested at 7%
2x=$600 invested at 8%
3x=$900 invested at 9%
Step-by-step explanation:
It depends if 24cm is the long dimension or the short one...it's the answer if 24cm is the short dim.
if 24cm is the long dimension then the answer is
24/1.618
1000/20 is the same as 100/2(you just removed a 0 from both of them)
10/2=5 add a 0
50
Answer:
C: 
Step-by-step explanation:

Since a =
:

Since n = 4 :
