Answer:
49.58 percents increase in iron
Step-by-step explanation:
- Step 1: get the difference between the two cecreals: 1.81 - 1.21 = 0.6 mg
- Step 2: divide the difference by the original number and then multiply the quotient by 100 to get the percentage % of increase = (0.6/1.21) * 100 = 49.58%
So there are 49.58 percents increase in iron
Answer:
5
Step-by-step explanation:
//////////////////////////////////////
Answer:

Step-by-step explanation:
Recursive Sequence
We are given the following sequence:
-1, 1, 5, 13...
It's required to find the recursive term for the sequence.
A recursive formula calculates each term as a function of one or more previous terms.
To find the recursive formula, we must find a pattern and transform it into a math expression.
Let's write the sequence, and below it, the difference of consecutive terms:
-1, 1, 5, 13...
+2, +4, +8
Note the difference between consecutive terms is always a power of 2, starting from 2^1, 2^2, 2^3.
The exponent is one less than the number of the term, thus:

Thus:

Testing:
n=1
(given).
n=2

n=3

n=4

Here are the terms:
7, 16, 25, 34, 43, 52, 61, 70, 79
As you can see the pattern here is add 9.
The 9th term will be 79.
A. 25% B. 33 1/2% C. 20% Correct = D. 40%