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wel
4 years ago
6

The equation b=540−30m gives the balance b (in dollars) that you owe on a drum set after m monthly payments. What is the balance

after 9 monthly payments?
Mathematics
2 answers:
dlinn [17]4 years ago
6 0
B=540 - 30(9)

b=540 - 270

b = 270

$270
taurus [48]4 years ago
6 0

Answer:

the balance after 9 monthly payments is, $270

Step-by-step explanation:

Given the equation:

b = 540-30m              ....[1]

where,

b represents the balance in dollars that you owe on a drum set after m monthly payment.

We have to find the balance after 9 monthly payments

⇒ m = 9 months

Substitute the given values in [1] we have;

b = 540-30(9)

⇒b = 540 -270 =270

Therefore, the balance after 9 monthly payments is, $270

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Arvin has $10000 to invest. He invests part in a term deposit paying 5%/year, and the remainder in Canada savings bonds paying 3
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Answer:

$4,562.5

Step-by-step explanation:

The amount Arvin has to invest, P = $10,000

The interest paid on the investment in the term deposit = 5%/year

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Let, <em>x</em>, represent the amount Arvin invested in the term deposit and let, <em>y</em>,<em> </em>represent the amount he invested in Canada savings bonds, we can get the following system of equations

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<em>(y = 10,000 - x</em>

<em>∴ y = 10,000 - 4,562.5 = 5,437.5</em>

<em>The amount Arvin invested in Canada savings bonds, y = $5,437.5.)</em>

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