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Sauron [17]
4 years ago
5

Mrs. Galicia bought a new car for $20,000. This car will depreciate at a rate of 6% per year. Which

Mathematics
1 answer:
REY [17]4 years ago
6 0

Answer:

f(x) = 20,000(1 - 0.06)^x

Step-by-step explanation:

The equation to get exponential decay is: A = P(1 +- r)^t

A = Account Balance

P = Principle Amount

r = interest rate (decimal)

t = Time (years)

So, if you plug in all the variables with the values represented in the word problem, you get: f(x) = 20,000(1 - 0.06)^x

Hope this helps!

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Isabel stacked two wooden blocks as shown. What is the total volume of the stacked blocks?
Kobotan [32]

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Answer:

  156 cm³

Step-by-step explanation:

The volume of any prism is the product of the base area and the height of the prism. Here, we can take the "base" to be the front face of the assembly, and its "height" to be the 3 cm distance between the front and back faces.

The front face area is the sum of the triangle area and the rectangle area.

  A = 1/2bh + LW

  A = (1/2)(10 cm)(4 cm) + (16 cm)(2 cm) = 52 cm²

Then the volume is ...

  V = Bh = (52 cm²)(3 cm) = 156 cm³ . . . . total volume of the two blocks

8 0
3 years ago
In a school, 130 students are sixth graders. If 52% of the students in the school are sixth graders, how many students are there
emmasim [6.3K]

Answer:

250

Step-by-step explanation:

52%-> 130

100%-> 250

3 0
3 years ago
Solve the system y=x-3 y=-2x+3
vivado [14]

Answer:

x = 2, y= -1 Or (2, -1)

Step-by-step explanation:

Let’s solve the system using substitution. First we can set the equations equal to each other:

x-3= -2x +3

Now solve for x

3x-3= 3

3x = 6

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Now that we have x, we can plug it back into one of the original equations to get y

y= x-3

y= 2-3

y = -1

Finally, the solution to the system of equations is (2, -1).

6 0
3 years ago
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x-axis is to flip the y - coordinates

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Find the value of this expression if x=1 and y=-5 <br> x^2y/7
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Step-by-step explanation:

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