The sum of ages of a man and his wife is 81. The ratio of their ages is 5:4. Find the age of the younger person.
2 answers:
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The amount of fiber needed in a day is 7.98 grams
<h3>Proportions</h3>Proportions are parts, in comparative relation to a whole.
In other words, proportions are fractions of a larger dataset
The given parameters from the question are given as:
- Proportion of the daily value of fiber needed = 57%
- Daily serving = 14 grams.
The amount of fiber needed in a day is the product of the proportion and the size of the daily serving.
So, we have:
Hence, the amount of fiber needed in a day is 7.98 grams
Read more about proportions at:
Answer:
Step-by-step explanation:
We'll assume the correct expression to be factored is
One must try to find out if the expression is a perfect square. To test it, we'll take the square root of the first and the last term. If they are exact, we'll procceed with the next step
Since both are exact, we'll test if the middle term is twice the product of both square roots:
We confirm the middle term equals the above expression. All tests confirm the original expression is
The required factoring is