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jonny [76]
3 years ago
7

Karen purchased a DVD player on sale. The original selling price was ​$171.50. The sale price was ​$145.22. What is the first st

ep in finding the percent​ markdown? Find the percent markdown.
Mathematics
1 answer:
Kaylis [27]3 years ago
5 0

Answer:

15% off

Step-by-step explanation:

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Choose the correct measure of an astronomical unit. 9.3 million miles .93 million miles 93 million miles 930 million miles
Genrish500 [490]
By definition, an astronomical unit in miles is given by:
 1 AU = 9.3 * 10 ^ 7 miles

 As it is in exponential notation, then we must rewrite.
 9.3 * 10 ^ 7 = 93,000,000 miles

 Therefore, an astronomical unit is:
 93 million miles
 Answer:
 
93 million miles
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3 years ago
Is a credit of $55 negative or positive ?
timofeeve [1]

Answer:

positive

Step-by-step explanation:

3 0
3 years ago
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If f(x)=2x-4, what would be the answer if f(3)-1??
Vinil7 [7]

Answer:

1

Step-by-step explanation:

We have the function

f(x) = 2x - 4

and we want to know the value of f(3) - 1.

The first step is to find f(3) ; we can subtract 1 from it at the end! But what does f(3) mean?

Basically, we're saying <em>"what is the value of the function when </em>x = 3<em> ?"</em>

So, we simply replace x with 3 in the function, and we get:

f(3) = 2\times 3 - 4 = 2.

Finally, we subtract 1 to find f(3) - 1 = 1.

3 0
3 years ago
2. A swimming pool has the shape of a
Aleonysh [2.5K]

Answer:

Volume= lxwxh

12 x 10 x 6= C

720 ft

Step-by-step explanation:

7 0
3 years ago
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3) Julian's shadow is 6 feet long. At the same time a 31 foot tall building casts a shadow that is 28 feet long. What proportion
SCORPION-xisa [38]

You are given the height of the building and the length of the shadow the building gives, so you can set that up as a proportion of Height of building over the length of the shadow so 31/28.

Now you can set the same proportion for Julian, using X for her height, so you would have x/6.


To solve for her height, set the two proportions equal and solve for x:

31/28 = x/6

Cross multiply:


31 * 6 = 28 *x

186 = 28x

Divide both sides by 28:

x = 186 / 28

x = 6.64 feet tall

5 0
3 years ago
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