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Anni [7]
3 years ago
9

How many years will it take to double an investment at 11% simple interest? ​

Mathematics
1 answer:
ddd [48]3 years ago
7 0

Answer:

10 years

Step-by-step explanation:

We can use the equation for simple interest: <em>I = P(1 + (R*T))</em>, and change some of the numbers: <em>2P = P(1 + (0.11*T))</em>

Divide: <em>2 = 1 + (0.11*T)</em>

Subtract: <em>1 = 0.11*T</em>

Divide: <em>T = 100/11 ≈ 9.09</em> ⇒ 10 years (rounded up because it won't be doubled until the next year)

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Are the point (-1, 1) and (3, 1/5) solutions to the equation 3x-5y=8
Sati [7]
The (3, 1/5) would be a solution while the (-1,1) wouldn’t because when you write this equation in the slope intercept form which is y = 3/5x - 8/5

1/5 = 3/5 (3) - 8/5

would end up with 1/5 = 1/5 which is write

While,

1 = 3/5 (-1) - 8/5

Would end up with
1 = 11/5 which is wrong



5 0
3 years ago
Two members of the Math Competition Team solve 13 problems in 1 hour. Assume all team members solve problems at the same rate. H
mylen [45]

14 because 2 people=13 problems in an hour

91/13=7

7times 2 is 14

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3 years ago
In the equation below, what is the coefficient of the variable?
qaws [65]
B

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7 0
3 years ago
Three times a number increased by ten equal to twenty less than six times a number . find the number​
kiruha [24]

Answer:

the number is 10

Step-by-step explanation:

3x + 10 = 6x-20

20+10=6x-3x

30=3x

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4 0
3 years ago
Read 2 more answers
What is the area of the figure?<br> Enter your answer in the box.
nordsb [41]

Answer:

The area of the figure = 112 in²

Step-by-step explanation:

The figure consist of:

1) A square of side length of 10 in.

2) A right triangle with a base of (10 - 6 = 4 in) and a height of (16 - 10 = 6 in)

So,

The area of the square = (side length)² = 10² = 100 in²

The area of the triangle = 0.5 * height * base = 0.5 * 6 * 4 = 12 in²

So,

The total area = 100 + 12 = 112 in²

<u>The area of the figure = 112 in²</u>

6 0
3 years ago
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