Return rate, r = 3% = 0.03
x = initial investment
b = final balance
After 1 year, the balance i
b = initial investment + interest
b = x + r*x = (1 + r)*x
Because r = 0.03,
b = 1.03x (after 1 year)
Answer:
The answer is 125.
Step-by-step explanation:
The formula for volume of a cube is s^3, where s is the length of a side. (Weirdly, you cube a cube.)
So, when you cube 5, the answer is 125.
Answer: 30g
Step-by-step explanation:
In this question (t½) of isotope is 40 days, which means that after 40 days half of the sample would have decayed and half would be left as it is.
After 40 days ( first half life) 240 /2 = 120 g decays and 120 g remains left.
After another 40 days ( two half lives or 80 days) 120 /2 = 60 g decays and 60 g remains left .
after three half lives or 120 days, 60/2 = 30g decay and 30 g of the isotope will be left.
297.3 to 295.?
to get to 297.3 from lets say 295.0 you need 2.3 more so a tenth is 0.1 so divide 2.3 by 0.1. you'll get 23 as the answer.