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

How many toothpicks are needed to build the tree on day 100?​-example-1
User Nic Nilov
by
5.1k points

2 Answers

9 votes

Answer:

100= 4 + 3 (100-1)

4+3 (99)

4 + 297 is 301

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?

User Aharon Manne
by
4.8k points
4 votes

Answer:

100 x 4 = 400 - 91 = 309

Explanation:

User Aybe
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5.1k points