John is starting a t-shirt business. He has an initial startup cost of $900. Each t-shirt costs $20 to produce and he plans to sell them for $30. How many sweatshirts must John sell before he starts to make a profit? 1. Write 2 equations using Y as the cost in dollars and X as the number of t-shirts.
2. Solve the system algebraically.
3. Solve the system graphically.

free points??

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: 177/8

step-by-step explanation: