Part 1 Ratio - 2 or more quantities measured in the same units

e.g - blue to red.

Rate - a comparison of two quantities measured in different units.

e.g - $1.69/100g is a rate for purchasing bulk food. (got it from the back of book)

What is the difference between ratio and rate?

The difference is that ratio compares two different quantities in the same units and rate compares two different quantities in different units.

Here's the question from page 60..

9. a) I think the Big jar of honey is the better buy. I divided $9.59 by 4, it equals to 2.40 (I rounded the number.)

b)The Big jar is better.

Question from page 61

11. Shannon buys 12 granola bars for $9.96.

a) Determine the price per bar. Give your answer in dollars and cents.

Answer-

Dollars- $0.83 Cents-83¢

b) Explain whether your answer in part a) is a ratio or a rate.

I think it's a rate because it's not comparing anything.

Coin Question

How tall would 1 $2 be?

25 $2 = 75mm

75mm/ 25 toonies = 3mm/1 toonie

Part 2

1) What would the recipe look like if it had to serve 10 people? Show your calculations.

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

Sorry if you can't see the pictures too well..

## Sunday, November 1, 2009

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