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Elden [556K]
4 years ago
6

Who invented math and why does it has to be very important

Mathematics
1 answer:
GarryVolchara [31]4 years ago
4 0

Answer:The ancient greeks began a systematic study of mathematics as a subject in its own right with Greeks. Math is importantly because it helps us have better problem solving skills.

Step-by-step explanation:

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There are a couple of different ways you could do this.
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4 years ago
Mary and dan went to a bookstore. mary bought 2 notebooks and 3 pens for $14.50. dan bought 1 notebook and 2 pens for $7.50. how
never [62]

Let n,p be the cost, respectively, of a notebook and a pen. If you buy 2 notebooks and 3 pens (which we know is a cost of $14.50), you spend 2n+3p

Similarly, if you buy 1 notebook and 2 pens (which we know is a cost of $7.50), you spend n+2p

These two equations form the following system:

\begin{cases}2n+3p=14.5\\ n+2p=7.5 \end{cases}

Multiply the second equation by 2:

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4 years ago
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