At noon, a block of ice was taken out of the freezer. At 2pm it
weighed 78 lbs. At 5pm, it weighed
41 lbs. How much does it weigh at 8pm?
?

ok

Step-by-step explanation:

37 lbs.

Step-by-step explanation:

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:

answer: i think one of the answer is $150 and $300?

step-by-step explanation: