2 answers:
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Answer:
The value of S(50) is 22 in means the amount of sodium iodine in the mixture is 22 when 50 milliliters of the 20% solution used.
Step-by-step explanation:
It is given that a chemist working on a flu vaccine needs to mix a 20% sodium-iodine with a 60% sodium-iodine to obtain a 70-milliliter mixture.
Let x be the number of milliliters of the 20% sodium-iodine.
Number of milliliters of the 60% sodium-iodine = 70-x
The amount of sodium iodine in the mixture is 20% of x and 60% of (70-x).
Therefore,the required function is .
Substitute x=50 in the above equation.
The value of S(50) is 22 in means the amount of sodium iodine in the mixture is 22 when 50 milliliters of the 20% solution used.
Answer:
Step-by-step explanation:
Given:
Amy works for a marketing agency and is designing a label for a company's newest product.
The label needs to be a rectangle where the length is 4 times the width.
represents the width.
Question asked:
Which expression represents the area of the label ?
Solution:
Width of the label = (given)
Then, length of the label will be = <u>4 times the width</u> =
As label needs to be a rectangular shape and as we know:-
Therefore, represents the area of the label.