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Marianna [84]
3 years ago
6

A mahogany desk with a cash price of $810 is offered on the installment plan at $50 down and $58 per month for 15 months. what i

s the total cost of the desk?
Mathematics
1 answer:
Paladinen [302]3 years ago
4 0
I think its $920. Because its asking for the total price of the desk you should do 58 * 15 = 870 and then 870+50= 920. 
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Write each number in scientific notation
Sophie [7]

1. 6x10^6

2. 5.4x10^-6

3. 6x10^-1

4. 9x10^3

5. 6.7x10^1

6.  2x10^6

7. 2x10^1

8. 71,000

9. 4.89x10^4

10. 9x10^7

11. 63

11. 3.3

12. 3

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hope it helps!

8 0
3 years ago
Read 2 more answers
Given a rectangle with length of (2x+9)cm and width of (3x+1)cm.Two squares, each with sides x cm is removed from the rectangle.
il63 [147K]

Answer: The length is 13cm and the width is 7cm

Step-by-step explanation:

For a rectangle of length L and width W, the area is:

A = W*L

In this case we have:

L = (2*x + 9) cm

W=(3*x + 1) cm

Then the area of the rectangle is:

A = (2*x + 9)*(3*x + 1) cm^2

A = (6*x^2 + 2*x + 27*x + 9) cm^2

A = (6*x^2 + 29*x + 9) cm^2

now we remove two squares with sides of x cm

The area of each one of these squares is (x cm)*(x cm)  = x^2 cm^2

Then the area of the figure will be:

area = (6*x^2 + 29*x + 9) cm^2 - (2*x^2 ) cm^2

area = (4*x^2 + 29*x + 9) cm^2

Now we know that the area of this shape is 83 cm^2, then we need to solve:

83 cm^2 = (4*x^2 + 29*x + 9) cm^2

0 =  (4*x^2 + 29*x + 9) cm^2 - 83 cm^2

0 = (4*x^2 + 29*x - 74) cm^2

Then we need to solve:

0 = 4*x^2 + 29*x - 74

Here we can use Bhaskara's equation, the solutions of this equation are given by:

x = \frac{-29 \pm \sqrt{29^2 - 4*4*(-74)}  }{2*4} = \frac{-29 \pm 45}{8}

Then the two solutions are:

x = (-29 - 45)/8 = -9.25  (for how the length and width are defined, we can not have x as a negative number, then this solution can be discarded).

The other solution is:

x = (-29 + 45)/8 = 2

x = 2

Then the length and width of the rectangle are:

Length = (2*2 + 9)cm = 13 cm

Width = (3*2 + 1)cm = 7cm

4 0
3 years ago
How many 5 digit numbers are even if repetition is not allowed?
shtirl [24]
23308 is the answer of how many is even with no repitition
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What are the zeros of the polynomial function f(x) = x3 + 10x2 + 24x?
Amiraneli [1.4K]
X^3 + 10x^2 + 24x

divide by x
x(x^2 + 10x + 24)

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a wrestler is weighing in for their match this evening. their normal weight is 168 pounds, but that weight can vary by as much a
Natalija [7]

<em>Introduction </em>

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<em>For too long, the wrestling community has unthinkingly accepted the myth that to be a good wrestler, you </em>

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<em>body fat percentage using skin fold calipers. Next, the wrestler completes a hydration test, to insure </em>

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<em>wrestler may not wrestle at a weight class below his minimum weight during the season. The wrestler is </em>

<em>also restricted from losing more then 1.5% body weight loss per week (official weigh-ins at certification, </em>

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<em>Additionally, the National Federation of State High School Associations has adopted several other rules to </em>

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5 0
3 years ago
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