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klio [65]
1 year ago
11

If you spend $50,000 on new furniture and it is depreciating about 20% per year, how much will it be worth by its third year?

Mathematics
1 answer:
Julli [10]1 year ago
8 0

Answer:

$25,600

Step-by-step explanation:

  • Given: P = $50,000, r = 20% & t = 3 years

  • Formula for depreciation is given as:

  • A(t) = P\bigg(1-\frac{r}{100}\bigg)^t

  • Plugging the values of P, r and t in the above formula, we find:

  • A(3) = 50,000\bigg(1-\frac{20}{100}\bigg)^3

  • \implies A(3) = 50,000\bigg(1-\frac{1}{5}\bigg)^3

  • \implies A(3) = 50,000\bigg(\frac{4}{5}\bigg)^3

  • \implies A(3) = 50,000\times\frac{64}{125}

  • \implies A(3) =\$ 25,600

  • So, after third year it will be worth by $25,600.
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15. A rectangle has a length of 2x - 1 and a width of 3x + 7. Find the perimeter of this rectangle.
andrew11 [14]

Answer:

10x + 12 and 6x² + 11x - 7

Step-by-step explanation:

The perimeter (P) of a rectangle is calculated as

P = 2l + 2w ( l is length and w is width )

   = 2(2x - 1) + 2(3x + 7) ← distribute parenthesis

    = 4x - 2 + 6x + 14 ← collect like terms

     = 10x + 12

--------------------------------------------------

The area (A) of a rectangle is calculated as

A = lw

   = (2x - 1)(3x + 7) ← expand using FOIL

    = 6x² + 14x - 3x - 7 ← collect like terms

    = 6x² + 11x - 7

7 0
2 years ago
Here is a diagram and its corresponding equation. Find the solution to the equation and explain your reasoning 38 x+7 x+7 x+7 x+
QveST [7]

Answer:

x = (-158)/87

Step-by-step explanation:

Solve for x:

38 x + 7 x + 7 x + 7 x + 7×4 (x + 7) = 38

Hint: | Multiply 7 and 4 together.

7×4 = 28:

38 x + 7 x + 7 x + 7 x + 28 (x + 7) = 38

Hint: | Group like terms in 38 x + 7 x + 7 x + 7 x + 28 (x + 7).

Grouping like terms, 38 x + 7 x + 7 x + 7 x + 28 (x + 7) = 28 (x + 7) + (38 x + 7 x + 7 x + 7 x):

28 (x + 7) + (38 x + 7 x + 7 x + 7 x) = 38

Hint: | Add like terms in 38 x + 7 x + 7 x + 7 x.

38 x + 7 x + 7 x + 7 x = 59 x:

28 (x + 7) + 59 x = 38

Hint: | Distribute 28 over x + 7.

28 (x + 7) = 28 x + 196:

28 x + 196 + 59 x = 38

Hint: | Add like terms in 59 x + 28 x + 196.

28 x + 59 x = 87 x:

87 x + 196 = 38

Hint: | Isolate terms with x to the left hand side.

Subtract 196 from both sides:

87 x + (196 - 196) = 38 - 196

Hint: | Look for the difference of two identical terms.

196 - 196 = 0:

87 x = 38 - 196

Hint: | Evaluate 38 - 196.

38 - 196 = -158:

87 x = -158

Hint: | Divide both sides by a constant to simplify the equation.

Divide both sides of 87 x = -158 by 87:

(87 x)/87 = (-158)/87

Hint: | Any nonzero number divided by itself is one.

87/87 = 1:

Answer: x = (-158)/87

5 0
3 years ago
A machine in a factory makes 20 gadgets every 1/4 hour. How many gadgets are made every hour?
Hoochie [10]

Answer:

80 machines

Step-by-step explanation:

If a machine makes 20 gadgets every fourth (1/4) of an hour, it makes 80 machines every hour (20*4).

7 0
3 years ago
What are the multiples of 88
NARA [144]
88 * 2 = 176 ;
88 * 3 = 264 ;
88 * 4 = 362 ;
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8 0
2 years ago
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ICE Princess25 [194]

Answer:

d≈91.63m

Step-by-step explanation:

d=w2+l2=78.92+46.62≈91.63389m

7 0
2 years ago
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