Numa universidade são lidos apenas dois jornais X e Y, 80% dos alunos lêem o jornal X e 60% o jornal Y. Sabendo-se que todo aluno é leitor de pelo menos um dos dois jornais. Qual é o porcentual de alunos que lêem ambos

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8

hence, the required result is

step-by-step explanation:

suppose we have two matrices a and b

we will assume the two matrices

we have to compute b-a which means subtracting corresponding elements of a from b.

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hello!

some people may think so but i don't. its just a human instinct in my opinion.

have a fantastic day! ~pooch ♥