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Anastasy [175]
3 years ago
5

mrs. Hicks is buying donuts for her favorite class. the cost for the first dozen is $15. since she has more than 12 students she

'll need to purchase additional donuts at a cost of $1 each. write a piecewise function showing the cost of x donuts.
Mathematics
1 answer:
Vlada [557]3 years ago
3 0
C=15+X

C being the total cost. Starting at $15 plus an additional $1 (seen as X in the equation) for each student.
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Which number produces a rational answer when added to 0.85
ZanzabumX [31]

The number that produces a rational answer when added to 0.85 is; 193/180

<h3>How to identify rational numbers?</h3>

A rational number is an algebraic term expressed as a fraction. The fraction can also be in decimals but only if the decimal places are not repeating or not infinitely long. If they aren't, then these are called irrational numbers.

Now, let us convert 0.85 to a fraction. Thus;

0.85 = 85/100 = 17/20

From the given options, the only one that when added to 0.85 will yield a rational number is 2/9. This is because;

17/20 + 2/9 = 193/180

193/180 is a rational number.

The missing options are;

A. 2/9

B. 0.2645751311...

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D.

Read more about rational numbers at; brainly.com/question/4694420

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3 0
1 year ago
A kite is flying 20 ft off the ground. Its line is pulled taut and casts a 15 ft - shadow. Find the length of the line. If neces
Kryger [21]

Answer:

The answer to your question is 25 ft

Step-by-step explanation:

Data

height = 20 ft

leg = 15 ft

length of the line = ?

To solve this problem use the Pythagorean theorem.

Height = short leg = b

leg = long leg = a

length of the line = hypotenuse = c

- Substitution

         c² = (20)² + (15)²

-Simplification

         c² = 400 + 225

         c² = 625

-Result

         c = \sqrt{625}

         c = 25 ft

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2 years ago
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DIA [1.3K]

Answer:

y=3x-2

Step-by-step explanation:

8 0
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X = ?????????????????
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Answer:

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Step-by-step explanation:

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