12-14 EXTRA CREDIT: Write Expressions Pd. 5

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. It does not have an equality sign.

Front

How do you represent a quantity that is '29 fewer' than another quantity in algebra?

Back

You subtract 29 from the variable representing the original quantity. For example, if the original quantity is represented by 'c', then 'c - 29' represents '29 fewer' than 'c'.

Front

If a person earns a certain amount per hour and works a variable number of hours, how can you express their total earnings?

Back

You multiply the hourly wage by the number of hours worked. For example, if the wage is $8 per hour and hours worked is 'h', the expression is '8h'.

Front

What does the expression '8h - 20' represent in a real-world context?

Back

It represents the total earnings of a pizza delivery driver who earns $8 per hour for 'h' hours and spends $20 on gas.

Front

How do you express a situation where one person has more money than another in algebra?

Back

You add the difference to the variable representing the amount the other person has. For example, if Maria has 'x' dollars and Evan has $35 more, the expression is 'x + 35'.

Front

What is the formula to calculate the total number of items arranged in rows?

Back

You multiply the number of rows by the number of items in each row. For example, if there are 'x' rows and 7 items in each row, the expression is '7x'.

Front

How do you express the total contribution of multiple people contributing the same amount?

Back

You multiply the number of contributors by the amount each contributes. For example, if 5 friends each contribute 'm', the total contribution is '5m'.

Front

What is the difference between a variable and a constant in algebra?

Back

A variable is a symbol (like x or m) that represents an unknown value, while a constant is a fixed value (like 29 or 35) that does not change.

Front

What does the term 'fewer' indicate in mathematical expressions?

Back

The term 'fewer' indicates subtraction in mathematical expressions.

Front

How can you represent a daily expense in an algebraic expression?

Back

You can subtract the expense from the total earnings. For example, if earnings are represented by '8h' and expenses are $20, the expression is '8h - 20'.