A math teacher said that 18 out of 25 students passed the test what percent did not pass the test

28%

Step-by-step explanation:

18/25=.72 ->72% passed the test, so then we take 100 and subtract 72 from it which leaves us with 28% that did not pass the test

28% of students did not pass.

Step-by-step explanation:

18/25 = 72/100

72% passed.

So, if 18/25 students passed, (72%) then 7/25 students did not pass (28%)

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:

no idea

step-by-step explanation: