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Debora [2.8K]
2 years ago
7

Jessica purchased a DVD that was on sale for 12% off. The sales tax in her county is 3%. Let y represent the original price of t

he DVD. Write an expression that can be used to determine the final cost of the DVD.
Mathematics
2 answers:
Zanzabum2 years ago
7 0

Answer:

is it y=12x+3

Step-by-step explanation:

x=DVD. DVD =12

seraphim [82]2 years ago
4 0

Answer:

is it y=12x+3

Step-by-step explanation:

x=DVD. DVD =12

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Answer:

Few things are missing, they are volume of the box is 180 feet cube. Length is 9 feet greater than its height, and weight is 4 feet less than its height.

Step-by-step explanation:

Given, the volume of the box, V = 180 feet cube

Let the height of the box, h = x feet

Therefore, length is, l = ( 9+x ) feet

And width is, b = ( x-4) feet

so volume of the box is

V = l x b x h

$ 180= (x+9) \times (x-4) \times (x)$

$ x^3 +5x^2-36x -180 =0$

Factorizing we get

(x+5)(x-6)(x+6)=0

Therefore,

x = -5, -6, 6

Now since the height of the box cannot be negative, so taking the positive value of x, we get

Height of the box, h = x = 6 feet

Length , l = ( 9+x ) = 9+6 = 15 feet

Width , b = ( x-4) = 6-4 = 2 feet

8 0
3 years ago
A farmer wants to build a square pigpen. The length of one side of the pen is 13 ft. How many feet of fencing should the farmer
wariber [46]

Answer:

169

Step-by-step explanation:

13x13=169 in a square all sides are equal

7 0
2 years ago
In each pear the first value is the regular price of an item and the second value is the price with gratuity. Identify the pair
lina2011 [118]
The price that does not belong is 16,18.40. You do this by finding the percent gratuity, which is 15%. All the other values have 15% gratuity except the $16.
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3 years ago
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2. add up the x side

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Im a bit confused as the question says “&lt” at least on my end? I’m not sure if that’s just the way it ended up being written or if it means something. Sorry if my answer doesn’t apply :(. But if it does, I hope it helps!
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What is the value of x in this figure?
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Check the picture below.

\bf 10\cdot \stackrel{cos(30^o)}{\cfrac{\sqrt{3}}{2}}=x\implies 5\sqrt{3}=x

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2 years ago
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