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zavuch27 [327]
3 years ago
11

Dora bought a bottle of nail polish that was marked down by 20 percent from its original price of $4.50. Including a 9 percent s

ales tax, what is the final cost of the bottle of nail polish?
$0.90
$0.98
$3.60
$3.92
Mathematics
2 answers:
o-na [289]3 years ago
7 0

Answer:

3.92

Step-by-step explanation:

Aleksandr-060686 [28]3 years ago
5 0

Answer:

3.92

Step-by-step explanation:

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Can you walk me through on how to do this
denpristay [2]

Answer:

h=v/πr²

Step-by-step explanation:

v=πr²h

v/π=r²h

v/πr²=h

3 0
3 years ago
How many models of 100 do you need to model 3200 explain ​
rusak2 [61]

32 models need to make model of 3200.

Given that a 1 model contain 100.

Two series of numbers, usually empirical data, that are proportional or proportional if their respective elements are in constant proportion, called the scaling factor or the rate constant.

One model has 100 elements.

Now, we have to find how many model contains 3200 elements.

So, 1 model=100 elements

n model =3200 elements

We will write this in proportion as

1/n=100/3200

Applying the cross multiply, we get

3200×1=n×100

Divide both sides with 100, we get

3200/100=100n/100

3200/100=n

32=n

Hence, the  32 models contain 3200 elements when one contain 100 elements.

Learn more about proportional from here brainly.com/question/23536327

#SPJ9

4 0
1 year ago
Jack's father is three times older than Jack. Five years ago, the sum of their ages was 34. How old is Jack's father now?.
Allisa [31]

Answer:

jacks father is x

jack is 3x

34 =

5 0
3 years ago
-4x + 6 + 2x + 5, Solve for X
pychu [463]
-4x + 2x = -2x
6 + 5 = 11
Therefore, 11 - 2x = 0
11 = 2x
x = 11/2 = 5.5
8 0
3 years ago
The recommended angle for a wheel chair ramp is 5 degrees. If the rise of the ramp to go up the steps is 2 feet, find the horiza
-Dominant- [34]

Answer:

22.9 feet

Step-by-step explanation:

You are using Tangent because you have the opposite and adjacent sides

Tan 5 = 2/x

x Tan 5= 2

x= 2/Tan5

= 22.860

5 0
3 years ago
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