This is a timed exercise. Click the “**Easy Mode**” button to start. Then move on to “**Hard Mode**“.

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**Sharing an Amount.**

- Use the sliders to specify the desired ratio.
- Also enter the amount to be shared in the Input box.
- Use the check boxes to establish the value of one share and hence the value of each ratio-part.

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**Use one of Three ways to solve Ratio problem.**

Consider the problem: A teacher is planning a class trip to the aquarium. The aquarium requires 2 chaperones for every 15 students. The teacher plans accordingly and orders a total of 85 tickets.

How many tickets are for chaperones, how many for students? Solve this problem in *one *of three ways:

**(1). Use a triple number line.**

**(2). Use a Table (Fill rows as needed)**

**(3). Use a Tape Diagram.**

Which of the Three methods do you prefer? Explain why.

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**Solving Ratio problem.**

(A). There are some nickels, dimes, and quarters in a large piggy bank. For every 2 nickels there are 3 dimes. For every 2 dimes there are 5 quarters. There are 500 coins total.

(1). How many nickels, dimes, and quarters are in the piggy bank? *Explain *your reasoning.

(2). How much are the coins in the piggy bank worth?

(B). Two horses start a race at the same time. Horse A gallops at a steady rate of 32 feet per second and Horse B gallops at a steady rate of 28 feet per second. After 5 seconds, how much farther will Horse A have traveled? Explain or show your reasoning.

Andre paid $13 for 3 books. Diego bought 12 books priced at the same rate. How much did Diego pay for the 12 books? Explainyour reasoning.

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Use the digits 1 through 9 to create three equivalent ratios. Use each digit only one time.

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A recipe for salad dressing calls for 4 parts oil for every 3 parts vinegar. How much oil should you use to make a total of 28 teaspoons of dressing? Explain your reasoning. If you get stuck, consider drawing a double number line, table, or tape diagram.

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Andre and Han are moving boxes. Andre can move 4 boxes every half hour. Han can move 5 boxes every half hour. How long will it take Andre and Han to move all 72 boxes? Explain your reasoning.

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