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Ksivusya [100]
3 years ago
8

Will someone help me I don't understand

Mathematics
1 answer:
musickatia [10]3 years ago
6 0
The answer to your question is $450
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A person invest $8800 in an account at 7% interest compounded annually. When will the value of the investment be 13,200? (Type a
Nitella [24]

Answer:

21.43

Step-by-step explanation:

Turn 7 percent to a decimal: 0.07

8800 × 0.07 = 616

13,200÷616=21.4285 etc

Round two decimal places

21.43

7 0
2 years ago
WILL MARK BRAINLIEST!!! A contractor has 34 meters of fencing that he is going to use as the perimeter of a rectangular garden.
snow_tiger [21]

Given

Shape of garden: Rectangle

Perimeter: 34 meters

Area: 72 square meters

Length of one side = x

Required

Find the dimension of the rectangle

Let the length of the other side of the rectangle be represented with y.

We start by writing out the perimeter of a rectangle

Perimeter, P = 2(L + B)

Where P is the perimeter; L and B are the length and width of the sides of the rectangle.

In this case L and B are represented by x and y

So,

P = 2(x + y)

By substituting 34 for P

34 = 2(x + y)

Multiply both sides by ½

½ * 34 = ½ * 2(x + y)

17 = x + y

Make y the subject of formula

y = 17 - x

Recall that the sides of the rectangle are represented by x and y.

Hence, the area of the rectangle is as follows.

Area = x * y

Substitute 72 for Area and 17 - x for y

72 = x(17 - x) --- Open bracket

72 = 17x - x² ---- Reorder

x² - 17x + 72 = 0

Now, we have a quadratic equation

Solving by factorisation

x² - 8x - 9x + 72 = 0

x(x - 8) - 9(x - 8) = 0

(x - 8)(x - 9) = 0

x - 8 = 0 or x - 9 = 0

x = 8 or x = 9

Recall that

y = 17 - x.

When x = 8

y = 17 - 8

y = 9

When x = 9

y = 17 - 9

y = 8

Writing out the result, we have

x = 8 , y = 9

Or

x = 9, y = 8

Hence, the dimension of the rectangle is 8 metres by 9 metres

7 0
3 years ago
The factory workers make 756 bows in 36 hours. Suppose the workers make the same number of bows each hour. How many bows do they
iren2701 [21]

Answer:

21 bows per hour

Step-by-step explanation:

when your trying to find the perfect hour you divide.

so 756÷36=21

hope this helps

7 0
3 years ago
Read 2 more answers
The ratio for 42 pens : 35 pencils as a fraction is
Alex73 [517]
As a fraction,
35/42, simplified, 5/6
answer=5/6
hope this helps....
4 0
3 years ago
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The values (11.1, 4) and (x, 15) are from an inverse variation. Find the missing value and round to the nearest
Murrr4er [49]
12 this is because my number for sports is 12 and i just need to answer a ? for point thanks have a good day
3 0
3 years ago
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