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Uc34758
03.02.2020 •
Mathematics
Trisha needs 4.5 yards of fabric to do a project. if she already has 2/3 of a yard of fabric, what is the minimum amount of fabric she must buy to be able to complete her project?
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Ответ:
2/3 of a yard would be 2 feet
4.5 yards = 13.5 feet
13.5-2 = 11.5 feet
11.5 feet = 3.83 yards
therefore at least 11.5 feet or 3.83 yards must be purchased
Ответ:
Step-by-step explanation:
Let's do it by parts.
Let's consider a fact: there has to be only one winner. After six games:
So,![a_{6}=1](/tpl/images/0604/0790/a3449.png)
Since it's a decreasing Geometric Sequence (we have to lead to one winner), and each match two teams play, the beaten one leaves the championship.
a) Explicit Rule (Formula):
That's to say the tournament started with 32 teams
b) Recursive Rule
If we have the first term of the Geometric Sequence we can recursively find the subsequent terms. The Recursive Rule is useful when we have the prior term and we need the following one. Also, to derive the explicit rule.