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Alexxx [7]
2 years ago
6

Lincoln Middle School has a total of $200 to spend on notebooks and tablets for the school board meeting. Notebooks cost $7 each

, and tablets cost $5 each. If x represents the number of notebooks and y represents the number of tablets, which graph correctly shows the solution to the problem?
Mathematics
1 answer:
Anton [14]2 years ago
4 0
The school can buy fifteen notebooks and nineteen tablets.  15X7=105 and 5X19=95.  95+105=200.  The first thing you want to do is realize that 5Xanything will give you an answer that has a 0 or a five at the end, so you want to find a product by 7 that ends with a 0 or 5 too.
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Answer:

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Step-by-step explanation:

The information provided is:

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r = interest rate = 5.4% p.a. = \frac{0.054}{12}= 0.0045

n = number of periods = 36

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First compute the Equated monthly installments (EMI) as follows:

EMI=\frac{P\times r\times (1+r)^{n}}{(1+r)^{n}-1} \\=\frac{15000\times0.0045\times(1+0.0045)^{36}}{(1+0.0045)^{36}-1} \\=\frac{79.3125}{0.175}\\=453.21

Now compute the interest as follows:

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The amount that will go towards the balance is,

Amount towards the balance = EMI - Interest  

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Thus, the amount that will go towards the balance is 385.71.

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