What is a variable? Also provide an example.
A letter that stands for an unknown number/quantity.
Solve for x:
x + 5 = 120
x = 115
Determine the pattern rule for the following (using an expression!):
Figure 1: 4
Figure 2: 7
Figure 3: 10
3n + 1
Create an expression for:
11 added to a number
11 + n
JK Rowling
What is a coefficient? Also provide an example.
The multiplier in front of the variable.
Solve for x:
x - 45 = 137
x = 182
Determine the pattern rule for the following (using an expression!)
Fig 1: 1
Fig 2: 6
Fig 3: 11
5n - 4
Create an expression for:
9 is subtracted from a number
n - 9
Pisa
What is a constant? Also provide an example.
A number that always has the same value.
Solve for x:
3x + 52 = 211
x = 53
Determine the pattern rule (using an expression!):
Fig 1: 8
Fig 2: 14
Fig 3: 20
6n + 2
Create an expression for:
A number multiplied by 25
25n
How many days are in a leap year?
366
What is preservation of equality?
Keeping balance on both sides of an equation.
"What you do to one side, you must do to the other."
x/7 - 11 = 144
x = 1085
Represent the following scenario using an algebraic expression (pattern rule). Explain what your variable means.
A meal delivery service charges a one-time $8 delivery fee plus $5 per meal.
5x + 8
x = number of meals
Create an expression for:
Add 30 by 8 times a number
30 + 8n
What do you call an angle more than 90 degrees and less than 180 degrees?
Obtuse angle
What is the difference between an expression and an equation?
An expression has a variable but no equal sign. The variable has no specific value. An equation shows two balanced sides joined by an equal sign.
30/x + 12 = 17
x = 6
Represent the following scenario using an algebraic expression (pattern rule). Then answer the problem.
A smoothie bar charges a one time $5 cup fee and $4 per smoothie. How much would it cost to buy 9 smoothies?
5 + 4x
Cost for 9 smoothies is $41
Create an expression for:
A number multiplied by 64 reduced by 30
64n - 30
This goes around the world but stays in the corner. What is it?
A stamp!!