Writing Equations in two variables and one variable flashcard

Front

What is the equation that represents the total cost y of x pounds of gourmet chocolate costing $5.25 per pound?

Back

y = 5.25x

Front

How do you express the difference of a number x and 2 being equal to 7?

Back

x - 2 = 7

Front

Is the ordered pair (2, 12) a solution to the equation y = x + 8?

Back

No

Front

What equation represents that 4 is the quotient of 16 and a number n?

Back

4 = 16/n

Front

How do you express that the sum of a number k and 5 is equal to 11?

Back

5 + k = 11

Front

What does it mean to write an equation in one variable?

Back

An equation that contains only one variable, such as x or y, allowing for a single solution.

Front

What is a variable in mathematics?

Back

A symbol, often a letter, that represents a number in equations and expressions.

Front

What is the difference between an equation and an expression?

Back

An equation states that two expressions are equal, while an expression does not include an equality sign.

Front

What is the solution to the equation 3x + 5 = 14?

Back

x = 3

Front

How do you represent the product of a number n and 7?

Back

7n