## Friday, October 14, 2011

### Diana's Proportion Post

Ratio-
two-term ratio: compares two quantities measured in the same units
three-term ratio: compares three quantities measured in the same units.
part-to-part ratio: compares
different parts of a group to each other.
part-to-whole ratio: compares one part of a group to the whole group.

Rate-
a comparisson of two auntities measured in different units.
EX. \$1.69 per grams or \$1.69/1
00g that is a rate for purchasing at bulk barn.

Proportion- an equation which states that two fractions are equal.h

Question 1) 5 hours to travel 360 miles is about 72 mph.

Question 2)As a playgroup worker, if I increase the amount of apple juice I am serving at the playgroup from 25 ml to 100 ml, how much should I increase the the orange juice to, to keep the quantities in the same proportion? The orange juice is 50 ml to start with.

What are the three ways you can prove that equivalent ratio statements are true?
3/4 = 12/16 or 4/9 = 16/32
Answer: you can multiply the top left to the bottom right. also you can do it diagonally, horizontally, and vertically