John uses of a cup of oats per serving 2/3
to make oatmeal. How many cups of
oats does he need to make 6 servings?

4

Step-by-step explanation:

1 serving = 2/3 cup

6 servings = 2/3 x 6

=> 6 servings = 4

He needs 4 cups to make 6 servings

4 cups

Step-by-step explanation:

We can use ratios to solve

2/3 cup           x cups

=

1 serving          6 servings

2/3 * 6 = x

4 = x

4 cups

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