Question

5. Allison has 5 times as many baseball cards

Answer 1

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 $=5x$               ...(1)

She has total of 120 baseball and football cards which can be represented by an expression given by

     Baseball cards + football cards = 120  

                          $5x+x=120\\6x=120\\x=20$

From equation (1) , put x = 20  we get

     Baseball cards = $5\times20$

                               $=100$ cards

           

Learn more about expression here :

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