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lora16 [44]
3 years ago
9

Christina is a dentist at the office she books 30 appointment each day three out of every 18 appointments are canceled how many

appointments are canceled each day
Mathematics
1 answer:
andrew11 [14]3 years ago
6 0

Answer:

5

Step-by-step explanation:

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The local library had a sale to get rid of the books that were slightly damaged it’s on paper back books for two dollars and har
kondor19780726 [428]

Answer:

The Local Library sold <u>31</u> hardcover books.

Step-by-step explanation:

Let number of paper back books be 'x'.

Let number of hardcover books be 'y'.

Given:

Total number of books sold = 89

Now Total number of books sold is equal to sum of number of paper back books and number of hardcover books.

framing in equation form we get;

x+y=89 \ \ \ \ \ equation \ 1

Now Given:

Cost of each paper back books = $2

Cost of each hardcover books = $5

Total Amount raised by library = $271

Now We know that Total Amount raised by library is equal to Cost of each paper back books multiplied by number of paper back books plus Cost of each hardcover books multiplied number of hardcover books.

framing in equation form we get;

2x+5y=271 \ \ \ \ equation \ 2

Now Multiplying equation 1 by 2 we get;

2(x+y)=89\times2\\\\2x+2y = 178 \ \ \ \ equation \ 3

Now Subtracting equation 3 from equation 2 we get;

(2x+5y)-(2x+2y)=271-178\\\\2x+5y-2x-2y=93\\\\3y = 93\\\\y=\frac{93}{3}=31

Substituting the value of y in equation 1 we get;

x+y =89\\\\x+31=89\\\\x =89-31 = 58

Hence The Local Library sold 58 paper back books and <u>31</u> hardcover books.

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3 years ago
There are 36 boys for every 54 girls
Sonbull [250]

Answer:

2 : 3 is ur ratio

Step-by-step explanation:

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Solve by factoring <br> x^2-x -30=0
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Step-by-step explanation:

use the formula if things get to difficult

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9. Each year the local country club sponsors a tennis tournament. Play starts with 128
UNO [17]

Answer:

3rd

Step-by-step explanation:

8 0
3 years ago
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I REALLY NEED HELP PLZ IM TIMED
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Step-by-step explanation:

(2x - 3) (x+5)

hope this helps

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