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kvv77 [185]
3 years ago
14

The length of a rectangle is 16 inches ,and its area is (32+48)square inches . Factor the expression for the area .write an expr

ession for the width
Mathematics
1 answer:
Snezhnost [94]3 years ago
6 0
Area=length*width
(32+48)=(16)*(width)
80=(16)(width)
width=(80/16)
5=width
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Terrence opens a savings account with a deposit of $1000. After 1 year he receives $50 in interest. What is the annual interest
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Answer:

Step-by-step explanation:

So, I'm pretty sure this is a problem about compound interest.

The formula for compound interest is A = p(1 + r/n)^nt

For this problem, $1000 is p, the initial amount; A is the total amount, or $1050.

What the problem is asking for is r, the interest rate, which is divided by n. N is the number of times the interest rate is compounded per year; Since the question is asking for the annual interest rate, N would be equal to 1. And because Terrence is has only left his money in for a year, t would also be equal to one.

So, by filling in the formula some, we get this:

$1050 = $1000(1 + r/1)^1*1

To find r, we would need to isolate it in the problem.

1. First, distribute $1000 to the parenthesis(keep in mind that 1000, is also equal to 1000/1:

1050 = (1000 + 1000r/1)^1

2. Then subtract 1000 from both sides:

50 = (1000r/1)^1

3. Multiple both sides by one:

50 = (1000r)^1

4. Divide both sides by 1000:

.05 = r^1 or .05 = r.

The answer is A, 5%.

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