Ginger exercised for 5 1/2 hours in 6 days. Each day she stretched for 1/4 hour and then walked. How long did she walk each day?

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

3 3 6, because in every triangle the longer side is always shorter than the sum of the other two

actually what is a question i don't understand