Explanations 
Textbooks 
Flashcards 
91影视 AI 
Notes 
Study Plans 
Study Sets 
Find a degree 
Magazine Problem 48
On Saturday, the temperature fell 10 degrees in 2 hours. Find the integer that expresses the temperature change per hour. (lesson 2.5 )
Problem 48
Simplify each expression. $$6 z-3-10 z+7$$
Problem 49
Use the Distributive Property to write each expression as an equivalent algebraic expression. $$3(a+b)$$
Problem 50
OPEN ENDED Write a two-step equation that could be solved by using the Addition and Multiplication Properties of Equality.
Problem 51
Use the Distributive Property to write each expression as an equivalent algebraic expression. $$4(j-k)$$
Problem 52
Use the Distributive Property to write each expression as an equivalent algebraic expression. $$10(r-s)$$
Problem 52
Write an expression in simplest form containing three terms. One of the terms should be a constant.
Problem 54
Identify the algebraic expression that does not belong with the other three. Explain your reasoning. \(-6(x-2),\) \(x+12-7 x,\) \(-x-5 x+12,\) \(-6 x-12\)
Problem 54
Divide. $$50 \div(-2)$$
Problem 55
Find each product mentally. Example $$\begin{aligned}15 \cdot 12 &=15(10+2) \\\&=150+30 \text { or } 180\end{aligned}$$. $$8 \cdot 23$$
