Roberto can read 4 pages in 6 minutes casey can read 6 pages in 9 minutes. is roberto’s ratio of pages to minutes equivalent to casey’s ratio of pages to minutes?

Yes

Step-by-step explanation:

Roberto 4:6 = 2:3

divisor 2. 4/2=2  6/2=3

Casey 6:9 = 2:3

divisor 3

6/3=2   9/3=3

i just took the test, the correct answer is .. 31.5 in.

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: