Ateacher writes two equations as shown. j = 3/8 (1/3 - 2/5) k = 3/4 (2/3 - 5/6) part a solve both equations. express your answer as a fraction in simplest form. show your work. part b what is the sum of j and k ? express your answer as a fraction in simplest form. show your work. part c what fraction when added to the result of part b would equal zero? explain your answer. part d create a real-world situation to represent the description in part c.

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

plz yuo

step-by-step explanation: