Algebraic expressions are expressions that are represented with numbers and variables
Represent the number of boxes with x, and the combined expression with y
Part A: The simplified expression
The individual expressions are:
- Turbo JET Pack: 6x + 7
- X-Ray Vision Glasses: 2x - 5
- Invisible Shield: 10x + 1
The combined expression becomes:
[tex]y = 6x + 7 + 2x - 5 + 10x + 1[/tex]
Collect like terms
[tex]y = 6x + 2x + 10x+ 7- 5 + 1[/tex]
[tex]y = 18x+ 3[/tex]
Hence, the combined expression is 18x + 3
Part B: Factor the simplified expression
Recall that the simplified expression is:
[tex]y = 18x+ 3[/tex]
Factor out 3
[tex]y = 3(6x+ 1)[/tex]
Hence, the factored expression is 3(6x + 1)
Part C: The number of accessories
In (b), we have:
[tex]y = 3(6x+ 1)[/tex]
Substitute 5 for x
[tex]y = 3(6 \times 5+ 1)[/tex]
Evaluate the product
[tex]y = 3(30+ 1)[/tex]
Evaluate the sum
[tex]y = 3(31)[/tex]
So, we have:
[tex]y = 93[/tex]
Hence, the toy store sold 93 accessories
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