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Dahasolnce [82]
3 years ago
8

You buy a touch iPod for $200, but it loses value at a rate of 10% each year. How much is your phone worth after 3 years?

Mathematics
2 answers:
NISA [10]3 years ago
6 0

Answer:

145.8

Step-by-step explanation:

200 times .9 times .9 times .9

Because it is 3 years

bekas [8.4K]3 years ago
3 0

Answer:

$266.20

Step-by-step explanation:

o=200

r=.1

t=3

w=200(1+.1)^3

w=200(1.331)=266.2

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4. What are the values of x and y? HELP PLEASE
Sergeeva-Olga [200]
The bottom answer is correct. I had some trouble with this so I had to find x and y in separate parts.

TO FIND X
notice that the top triangle and bottom triangles are similar, meaning if you multiple all three sides of one by a specific number, it becomes the same size as the bottom triangle.

17 x n = 8, therefore n=8/17
8 x n = X, therefore X=64/17

For some reason, this does not give a correct value for Y, so I had to use trig 

TO FIND Y 

Notice that the angle DAB is the same as DBC (lets call this angle Ø)

Using trig rule, we know that the cos of an angle is equal to the adjacent side divided by the hypotenuses.

We can now form some equations:

cosØ = 15/17 (from the top triangle)
cosØ = 8/Y      (from bottom triangle)
Now we know that Y=(8x17)/15 = 136/15

X=64/15  Y=136/15
8 0
2 years ago
4(1/2x + 2) = 6
Goshia [24]
x=2. -5/6 have a great rest of your day
6 0
3 years ago
Simplify<br><br> Will mark brainliest, please show work if possible
Reil [10]
The answer for this question is 8/1

5 0
3 years ago
Read 2 more answers
you get $2,000 loan at 9% interest rate and pays it back in 6 months. how much intereast will you pay on the loan
notka56 [123]

Answer:

$90

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 9%/100 = 0.09 per year,

then, solving our equation

I = 2000 × 0.09 × 0.5 = 90

I = $ 90.00

The simple interest accumulated

on a principal of $ 2,000.00

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3 years ago
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sleet_krkn [62]

Answer: The answer is (2)

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