The diameter of a small gear is 16 cm. this is 2.5 cm more than 1/4 of the diameter of a larger gear. what is the diameter of the larger gear? (round to the nearest centimeter)

let 'x' represent the diameter of the larger gear

2.5 + (1/4)x = 16

x = 54 cm

answer: the correct one is a

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: