Monday, November 2, 2009

%%%%%'s Rate Growing Post

PART #1.

Ratio-compares 2 quantites measured in the SAME units.

Rate - Compares 2 quantities measured in DIFFERENT units.

What is the difference between ratio and rate?

RATE is comparing 2 quantities measured in DIFFERENT units while a RATIO compares 2 quantities in the SAME unit.

PAGE 60:

4. Determine the unit rate in each situation.

a) An orca swims 110 km in 2 h.

b) A Canada goose flies 800 km in 12.5 h.

c) Cathy plants 45 daffodils in 30 min.

a)55 km/hr

b)64 km/hr

c) about 1.5 daffodils a minute

[How I got the answers I made a Ration Table, then I did the usual routine to get the answer.]

PAGE 61:

10.Trevor rod ehis mountain bike 84 km in

3 h. Jillian rode 70 km in 2.5 h. Who is

the faster cyclist? How do you know?

Trevor and Jillian rode the same speed which was 28km/hr.(I think that's what i got)

[ How I got my answer was i made another Ratio table, then divided 3 by 3 then did it to the othere side which was 84. Then my answer was 28 for Trevor, I did the same routine to Jillian.]

PART # 2

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

-All i did was I multiplied the numbers by 2.5 then that's how i got my answer.

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

-I did the same thing to this question from the earlier question, but I divided by 10 to get to 1.



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