1. Explain what you think each word means when it is used to make a comparison.a) ratio-b) percent-c) fraction-d) difference –2) Give an example of a situation using each concept to compare two quantities. (150 total seventh graders, 80 girls, 70 boys)a) ratio-b) percent-c) fraction-d) difference-

1) a ratio is a part to part to part a fraction is a part to whole and a percent is a part to part anad difference is subtracting. 2)boys 70/150 70 to 80 52% is boys and 150 - 70=80 boys.

math reflections investigation 4

1) What has to be the same in order for two parallelograms to be similar?2) Describe a way to find a missing side length in a pair of similar figures.3) I have a small isosceles triangle with a base of 3 inches and other sides are 4 inches.I want to create a similar isosceles triangle with a base of 7.5 inches.What should the other side lengths be and why?
Posted by Mrs. Domenico's Algebra Class Blog


1)the angles and the scale factor have to be the same for two parallelograms to be similar.
2)a way to find the missing side lengths is to find the scale factor and then divide the scale factor.
3)you would do 7.5 divided by 3 and you wouls get 2.5 so that would be the scale factor so the side lengths would be 10 because 4 multiplied by 2.5 is 10.

logans math blog

Compare the oringinal paper's side lengths to the new paper's side lengths.2) Compare the angles of the original to the new paper.3) Compare the area of the new paper to the area of the original1)the parer was divided by 50% so it is half its size. 2)the angles on each paper stay the same the paper gets smaller but the angles will always stay the same 3)the area of the paper was multiplied by 4 so now the area is 80 befor and then it is 320