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ipn [44]
3 years ago
7

The office needs 6 new devices worth $7200. The order consists of new computers (C) which cost $1425 each and printers (P) which

cost $750 each. How many of the new devices are computers and how many are printers?​
Mathematics
1 answer:
ira [324]3 years ago
7 0
C + P = 6
C = -P + 6

750P + 1425C = 7200
750P + 1425(-P + 6) = 7200
750P - 1425P + 8550 = 7200
-675P = -1350
P = 2

C + 2 = 6
C = 4
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How many anagrams are there to the word FRIDAY? In how many of these do the letters 'DAY' appear consecutively? (Disregard wheth
QveST [7]

There are 720 total different combinations, and 24 of those will have the letters DAY consecutively within all those combinations.

<u>Explanation:</u>

FRIDAY is a six letter word.

To form all combinations of letters, we would have six choices of letters to fill the first spot. Whatever letter you choose for the first spot, you then have five choices of letters to fill the second spot. Four choices of letters to fill the third spot. And so on.

So, the total number of different combinations of the six letters would be 6!

6! = 6 X 5 X 4 X 3 X 2 X 1

   = 720

DAY could appear consecutively starting in 4 different spots: the 1st, 2nd, 3rd, and 4th spots of all combinations. DAY will appear consecutively 6 times in each of those 4 starting spots.

6 X 4 = 24.

So, there are 720 total different combinations, and 24 of those will have the letters DAY consecutively within all those combinations.

7 0
3 years ago
Is the point (5, -7) a solution to the equation <br> Y &gt; -2x + 3
nordsb [41]
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3 0
3 years ago
If a circle is inscribed in a triangle which of the following must be true
KatRina [158]
A, C, E

B false because triangle is confirmed larger if the circle is fit inside of it.

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3 0
3 years ago
Read 2 more answers
What is the correct answer ​ NEED THE ANSWER ASAP
tiny-mole [99]
1 solution


Step by step explanation This is how I got the answer to your question and I gave you the solution I hope this helps you out
8 0
3 years ago
Dy/dx e^8x= sin (x+4y)
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4 0
4 years ago
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