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belka [17]
3 years ago
9

Melissa bought 2 CDs that each costs the same including sales tax, she paid a total of 29.20. Of that total 1.60 of it was tax.

What was the price of each CD before tax?
Mathematics
1 answer:
topjm [15]3 years ago
7 0

Answer:

$13.80

Step-by-step explanation:

You would subtract 1.60 from 29.20 to get 27.60. Then you would divide by two because there were two CDs and get $13.80

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Graph and write the solution:<br><br> Y= x - 4<br> Y= 1/3x - 2
Reika [66]

Answer:

1. x=4

2. x=6

Step-by-step explanation:

I've attached the graphs here:

Clearly, the solution for first one is(Reminder: the solution is the x-intercepts, when y is zero):

x=4

And the second is:

x=6

Hope this helps!

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6 0
3 years ago
Find the values of m and b that make the following function differentiable.
Sonbull [250]
The derivative of f(x) at x=3 is 2x=6 approaching from the left side (apply power rule to y=x^2). The derivative of f(x) at x=3 is m approaching from the right side. In order for the function to be differentiable, the limit of derivative at x=3 must be the same approaching from both sides, so m=6. Then, x^2=mx+b at x=3, plug in m=6, 9=18+b, so b=-9.
7 0
3 years ago
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Sarah has 128 stickers. alex has 10 fewer stickers than sarah. how many stickers does Alex have.
nikitadnepr [17]
To get your answer you first subtract 10 from 128 which is 118.
4 0
3 years ago
THIS IS URGENT PLEASE
Naya [18.7K]

Answer:

5

Step-by-step explanation:

The side with 4 cubes has a length of 2, the side with 2 cubes has a length of 1, and the side with 5 cubes has a length of 2.5.

2 x 1 x 2.5 = 5

4 0
3 years ago
There are 8 roses in a vase of 13 flowers. The rest are daisies.
Blizzard [7]

Answer:

  1. 5:13
  2. 8:5

Step-by-step explanation:

For first part:

  1. Roses = 8
  2. Daises = All flowers - Roses
  3. Daises = 13 - 8
  4. Daises = 5
  5. Daises:All Flowers = 5:13

For second part:

  1. Roses:Daises = 8:5

I hope this helps!

7 0
3 years ago
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