Question

Two situations are shown below: 1. Charlie has 3 times as many baseball cards as Ramon. If Ramon has x number of basebal cards how many does Charte have? 2. Emily has 3 more bracelets than Amy. If Amy has x number of bracelets, how many does Emily have Are these situations represented by the same expression? Explain why or why not

Answer 1

Mathematical expressions

Case 1:

Three time a number expresses a multiplication: three times X is

3X

Case 2:

Three more than a number expresses an addition: three unities more than X is

X + 3

They are not the same expression. One is an addition and the other is a multiplication. If x = 5, in the first, 3x = 15, in the second x + 3 = 8

They are not the same