2) One brand of computer scanner can read 74 documents per hour while a second scanner can read 92 documents per hour. How many hours will it take for both scanners together to read 747 documents?

it’s supposed to be -4+45=41

step-by-step explanation:

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step-by-step explanation:

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chemists are often responsible for designing a chemical reaction and analyzing the products obtained from it. one significant part of designing a chemical reaction is determining the amount of each reactant that is needed and the amount of each product that will be produced. in order to do so, chemists use stoichiometry, the quantitative relationships between reactants and products.