9(9t-4) > 12(12t-3)choosing brainliest

9(9t - 4) > 12(12t - 3)    Multiply 9 into (9t - 4), and multiply 12 into (12t - 3)

81t - 36 > 144t - 36      Subtract 81t on both sides

81t - 81t - 36 > 144t - 81t - 36

-36 > 63t - 36              Add 36 on both sides

-36 + 36 > 63t - 36 + 36

0 > 63t                         Divide 63 on both sides

0 > t

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:

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step-by-step explanation: