**Part one:**

Definition of Ratio :

compares 2 sets of data in the same unit.

Definition of Ratess:

compares 2 amounts measured in different units.

example; 72 beats per minute - 72 beats/min

Difference :

ratio-measures of 2 different quantities in the same unit.

rate- measuerments of different units per unit.

**Page 60 :**

7. The table shows the price of different-sized

packages of mixed nuts.

a) What is the unit price per 100 g for each package?

b)Which package is the best buy? Explain your choice.

Package 2 is better because compared to the other packages, package 2 is the cheapest.

14. Conversion rates among currencies variesses from day to day. The numbers in the table give the value in foreign currency of one Canadian dollar on one particular day.

b)Which package is the best buy? Explain your choice.

Package 2 is better because compared to the other packages, package 2 is the cheapest.

**Page 61 :**

14. Conversion rates among currencies variesses from day to day. The numbers in the table give the value in foreign currency of one Canadian dollar on one particular day.

b) What was the value of $375 Canadian in U.S. dollars?

c)What was the value of $450 Canadian in Australian dollars?

c)What was the value of $450 Canadian in Australian dollars?

**Coin Question Again**:

If the coins were stackled how tall would the stack be? ( turned into rate )

coin/mm or coin per mm

100mm/50 pennies

2mm/1 penny

60 mm/20 nickels

3mm/1 nickel

coin/mm or coin per mm

**Pennies:**100mm/50 pennies

2mm/1 penny

**Nickels:**60 mm/20 nickels

3mm/1 nickel

**Part two**

These are the Grade 8 ingredients for Spaghetti Sauce. This recipe serves 4 people.

I multiplied ' four's ' numbers by 2.5 to get 10 servings.

**2)**What would the recipe look like if you had to only serve 1 person? Show your calculations.

I divided 10 to ' ten ' to get 1.

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