The algebraic expressions given by the three students which was derived using the tiles represented in the figure are all correct.
<u>Patti's algebraic expression</u> :
2 - 1 + 2x - 3 could be broken down as follows :
- 2 = two shaded tiles with each having a +1 value
- -1 = white tile which has a - 1 value
- 2x = two shaded tiles labeled x
- -3 = 3 shaded tiles in the negative portion of the rectangle, with each having a - 1 value.
<u>Carla's Expression</u> :
2x + 2 - 4 could be explained thus :
- Carla builds on Patti's expression by summing up the negative values of the tiles.
- 2x + 2 - 1 - 3 = 2x + 2 - 4
<u>Emile's expression</u> :
2x - 2 could be explained thus ;
- Emile simplified the expression further by adding all the constant values to produce a simplified expression
2x + 2 - 1 - 3
2x + 2 - 4
2x - 2
Therefore, all the algebraic representation of the tiles given by the students are all correct.
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Answer:
17
Step-by-step explanation:
You add 12+5=17 mistery books hope this helps
Answer:
Step-by-step explanation:
CE × ED = AE × EB
17 CE = 14 × 18
CE = ≈ 14.8
You count each unit square and it counts as one so for number two from point o to point a there are 5 unitsif each side we’re 5 hints and there are 6 sides you multiply five by six to get the answer of 39 for number three
Answer:
the answer is A or the first one
Step-by-step explanation:
this is because the "x" cannot have the same number. As you can see, all the other pairs have two numbers that are the same in the "x" spot. So this concludes that the top one is the answer. Sorry for the bad explanation.