which equation would you multiply to get opposite coefficients for one of the variables in this system? What would the new equation be? 3x+5y=1 or -2x+y=2

the anwser is d) 75°

step-by-step explanation:

answer: b

step-by-step explanation:

1.) 21

2.) 0.453

3.) 1.5

4.) 48

5.) $ 22

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.