n + n + 5 = 41 (4) 5n + n + 1 = 41
<em>n and "5 larger than n"
</em>
'5 larger than n' = equivalent to n + 5
We now have n + n + 5
The problem says 41, thus;
<em>n + n + 5 = 41</em>
Answer:
7
Step-by-step explanation:
7 plus 7 equals 14, which is two times 7
Answer:
The doubling time of this investment would be 9.9 years.
Step-by-step explanation:
The appropriate equation for this compound interest is
A = Pe^(rt), where P is the principal, r is the interest rate as a decimal fraction, and t is the elapsed time in years.
If P doubles, then A = 2P
Thus, 2P = Pe^(0.07t)
Dividing both sides by P results in 2 = e^(0.07t)
Take the natural log of both sides: ln 2 = 0.07t.
Then t = elapsed time = ln 2
--------- = 0.69315/0.07 = 9.9
0.07
The doubling time of this investment would be 9.9 years.
Answer:
c. Weights of babies are normally distributed
Step-by-step explanation:
The research has been conducted to identify the weight of new born babies in comparison to the weight of their mother. The samples are collected from young mothers who are at age of 16 to 18. The babies average weight turned out to be 7.3 pounds. It is assumed that the weight of babies is normally distributed.
Two equivalent ratios for 30 to 6 can be 15 to 3 or 45 to 9
