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Algebra_3

Chapter 67

Problem 1

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A test tube contained a mixture of oxygen (O2) and hydrogen (H2).
The mass ratio of oxygen to hydrogen was to .
If the total mass of the oxygen plus hydrogen was grams.
How much of the mixture was hydrogen?
This statement can be written in two parts in shorthand form as:

click refresh (F5)

and click refresh (F5)


The mass of the hydrogen = gr


Example:

Suppose the ratio of red (R) marbles to yellow (Y) marbles in a bag is 5 to 18.
If there are a total of 125 red marbles in the bag, how many of the marbles are yellow?

The ratio of red to yellow marbles can be written as click refresh (F5)

The total number of red marbles R = 125.

By substituting Y = 18/5R you get click refresh (F5) yellow marbles.

Try this solution by entering (18/5)125 into the Graphing Calculator in the Function f(x) = box .
Click on the Plot Graph button to obtain your solution as f(x) = 450
below the Function f(x)=box