How many dimes equal the value of 6 quarters?

15 dimes

Step-by-step explanation:

6 quarters = 6 * .25 = 1.50

a dime equals .10

d * .10 = 1.50

Divide each side by .10

d = 1.50/.10

d = 15

15 dimes

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: