Writing Equations in two variables and one variable flashcard

Front

What is the equation for the total cost of pizzas delivered if a pizzeria charges $12 per pizza and $3 for delivery?

Back

c = 12p + 3

Front

If gourmet chocolate costs $5.25 per pound, what equation represents the total cost y for x pounds of chocolate?

Back

y = 5.25x

Front

What equation represents 7 times a number a equals 42?

Back

7a = 42

Front

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

Back

No

Front

What equation represents the difference of a number x and 2 equals 7?

Back

x - 2 = 7

Front

What does the variable 'c' represent in the equation c = 12p + 3?

Back

The total cost of pizzas delivered.

Front

In the equation y = 5.25x, what does 'y' represent?

Back

The total cost of x pounds of chocolate.

Front

What is the first step to solve the equation 7a = 42?

Back

Divide both sides by 7.

Front

If x - 2 = 7, what is the value of x?

Back

x = 9

Front

What is the meaning of a variable in an equation?

Back

A symbol that represents an unknown value.