The science club sold 35 t-shirts last week and 28 t-shirts this week. what is the percentage of decrease in the number of t-shirts sold?

In order for us to know the answer, we just have to know what percent is 18 from 25, given that they sold 25 t shirts last week and only 18 t-shirts this week. So to know this, we simply divide 18 by 25 and we get 0.72 multiply this by 100 and it is 72%. To know the percentage of decrease, simply subtract 72% from 100% and we get 28%. Therefore, the percentage of decrease is 28%. Hope this answer helps.

8y^50

step-by-step explanation:

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