Writing and Solving Expressions

Front

What expression represents the number of frogs left in a pond if there were initially 47 frogs and f frogs hopped away?

Back

47 - f

Front

If Allison made n brownies and Aiden made 10 fewer brownies than Allison, what expression represents the number of brownies Aiden made?

Back

n - 10

Front

How do you evaluate the expression ab ÷ 3 if a = 3 and b = 4?

Back

4

Front

If Jordan makes 100 dollars each week and worked for x weeks, what expression represents how much money he made this summer?

Back

100x

Front

Evaluate the expression \(\frac{10}{h}+8c\) using h = 5 and c = 4.

Back

34

Front

What is the general form of an expression that represents a quantity decreased by a certain amount?

Back

x - a, where x is the initial quantity and a is the amount decreased.

Front

What is the formula for calculating the total earnings of a person who earns a fixed amount per week over a number of weeks?

Back

Total Earnings = Weekly Earnings × Number of Weeks

Front

How do you represent a situation where a quantity is increased by a certain amount?

Back

x + a, where x is the initial quantity and a is the amount increased.

Front

What does the variable 'n' typically represent in algebraic expressions?

Back

A variable that can represent any number, often used to denote an unknown quantity.

Front

What is the significance of using variables in expressions?

Back

Variables allow us to represent unknown values and create general formulas that can be applied to various situations.