John and gary share a workload. at a certain point, john worked 2 more hours than gary. the next day, john has worked 4 of gary’s usual hours. how many more hours has john worked than gary?

The answer is 10.

Step-by-step explanation:

John works 2 more hours on the first day, so he starts with having 2 hours more than Gary.

He covers 4 hour for Gary, meaning John gained 4 hours and Gary lost 4 hours.

2 + 4 + 4 = 10

or

John begins with x hours which means that Gary worked x - 2 hours. John's total increases to x + 4 hours while Gary's to x - 6. Therefore, the total difference in hours is (x + 4) - (x - 6) = 10

the answer for your question is

step-by-step explanation:

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.