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Ainat [17]
3 years ago
8

How many toothpicks are needed to build the tree on day 100?​

Mathematics
2 answers:
Masja [62]3 years ago
8 0

Answer:

100= 4 + 3 (100-1)

4+3 (99)

4 + 297 is 301

Step-by-step explanation:

The first row starts with 4 toothpicks, and they increase by +3 in each row.  The first tree is already accounted for which makes the 4 + 3, and why I have 100-1.  The teacher said the answer was correct but I doubted the equation.  Can you tell me if this is correct?

Mariana [72]3 years ago
4 0

Answer:

100 x 4 = 400 - 91 = 309

Step-by-step explanation:

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3 years ago
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Let's simplify step-by-step.
8
x
3
−
x
−
(
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x
2
−
3
x
3
)
Distribute the Negative Sign:
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1
(
−
5
x
2
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+
−
1
(
−
3
x
3
)
=
8
x
3
+
−
x
+
−
10
x
+
5
x
2
+
3
x
3
Combine Like Terms:
=
8
x
3
+
−
x
+
−
10
x
+
5
x
2
+
3
x
3
=
(
8
x
3
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3
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5
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=
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6 0
3 years ago
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