Rate - Compares to 2 quantaties measured in different units.

Ratio - Measures 2 different quantities measured in the same unit.

The difference between rate and ratio is that rate measured in different units while ratio is measured in the same unit.

The question I chose from page 60 is question 3.

a) Give two examples of rates that are common in everyday life.

An example of a rate is 7 days in a week.

7 days/1week

Another example of a rate is 6 periods in a day.

6periods/1day

An example of a rate is 7 days in a week.

7 days/1week

Another example of a rate is 6 periods in a day.

6periods/1day

b)What units measure each of the rates in part a)?

The units measured in part a) are periods and school and days and weeks.

The units measured in part a) are periods and school and days and weeks.

c)Explain why a rate cannot be expressed as a percent.

A rate cannot be expressed as a percent because it does not have a part to whole relation.

A rate cannot be expressed as a percent because it does not have a part to whole relation.

The question I chose from page 61 was question number 10.

Trevor rode his mountain bike 84 km in 3 h. Jullian rode 70 km in 2.5 h. Who is the faster cyclist? how do you know?

Trevor and Jullian rode their bikes at the same speed.

Trevor rode his mountain bike 84 km in 3 h. Jullian rode 70 km in 2.5 h. Who is the faster cyclist? how do you know?

Trevor and Jullian rode their bikes at the same speed.

How I got my answer :

First I converted the hours into minutes to get a more precise answer.

(3hr. > 180 min.) (2.5hr. > 150 min.)

First I converted the hours into minutes to get a more precise answer.

(3hr. > 180 min.) (2.5hr. > 150 min.)

In a ratio table, what you do to one side you have to do to the other.

PART 2

Question 1 :What would the recipe look like if it had to serve 10 people?

My calculations :

1/2 x 10 = 5 lb ground beef

1 x 10 = 10 medium onions

1 x 10 = 10 celeries finely sliced

1 x 10 = 10 cloves of garlic14 x 10 = 140 oz of can of chopped tomatoes

1/2 x 10 = 5 cans of tomato paste

1 x 10 = 10 tsp parsley

1 1/2 x 10 = 15 tsp basil

1 x 10 = 10 tsp oregano

1 x 10 = 10 tsp sugar

1/2 x 10 = 5 tsp worchestershire sauce

1/2 x 10 = 5 tsp seasoning salt

1 x 10 = 10 bay leaf

Qustion 2 : What would the recipe look like if you had to only serve 1 person?

My calculations :

1/2 ÷ 4 = 0.125 lb ground beef

1 ÷ 4 = 1/4 medium onion

1 ÷ 4 = 1/4 celery finely sliced

1 ÷ 4 = 1/4 clove garlic

14 ÷ 4 = 3 1/2 oz of can of tomatoes chopped

1/2 ÷ 4 = 0.125 can of tomato paste

1 ÷ 4 = 1/4 tsp parsley

1 1/2 ÷ 4 = 0.375 tsp basil

1 ÷ 4 = 1/4 tsp oregano

1 ÷ 4 = 1/4 tsp sugar

1/2 ÷ 4 = 0.125 tsp worchestershire sauce

1/2 ÷ 4 = 0.125 tsp seasoning salt

1 ÷ 4 = 1/4 bay leaf

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