Question 18 Multiple Choice Worth 1 points) (01.02 LC)
Which of the following is the missing reason?
Statements
Reasons
2
=x+ 7 = -5 Given
3
2x + 21 = -15 Multiplication Property of Equality
2x = -36 Subtraction Property of Equality
X = -18
2
Division Property of Equality
Distributive Property
Addition Property of Equality
Subtraction Property of Equality

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:

step-by-step explanation:

mean or average is 40.6

addition

step-by-step explanation: