Alison have 100 baseballs cards .
- A expression is a statement containing at least two numbers/variables and at least one mathematical operation.
- An expression is a combination of terms combined by mathematical operations such as subtraction, addition, multiplication, and division.
- The terms that appear in the formula are:
- Constant: A constant is a fixed number.
- Variables: Variables are symbols that do not have fixed values.
- Term: A term can be a single constant, a single variable, or a combination of variables and constants combined with multiplication or division.
- Coefficient: A coefficient is a number that is multiplied by a variable in an expression.
Let the number of footballs cards Alison have be "x".
It is given that Allison has 5 times as many baseball cards as football cards which can be represented by an expression given by
number of baseball cards = 5 × number of football cards
number of baseball cards ...(1)
She has total of 120 baseball and football cards which can be represented by an expression given by
Baseball cards + football cards = 120
From equation (1) , put x = 20 we get
Baseball cards =
cards
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