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andreyandreev [35.5K]
3 years ago
13

Solve the system of equations and choose the correct ordered pair. 4x+7y=47 and 5x-4y=-5

Mathematics
1 answer:
Slav-nsk [51]3 years ago
8 0

Answer: (3,5)

Step-by-step explanation: good luck!

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PLEASE HELP ??<br><br> What is the length of x?
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Answer:

4 1/2 is the length of x

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Tanya opened a savings account with a deposit of 550.she deposited 450 and withdrew 120.
Rasek [7]
550+450-120+720=1,600
720/1,600*100%
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=45%
therefore, 45% of new balance
5 0
3 years ago
paula and ricardo are serving cupcakes at a school party. if they arrange the cupcakes in groups of 2,3,4,5 or 6, they always ha
slega [8]
Find the smallest number that is divisible by 2, 3, 4, 5, 6 and add 1.
We need the least common multiple of 2, 3, 4, 5, 6.

2 = 2
3 = 3
4 = 2^2
5 = 5
6 = 2 * 3

LCM = product of common and not common prime factors with larger exponent.

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To always have a remainder of 1, you need of add 1 to 60.

The number is 61.

Check:
61/2 = 30 remainder 1
61/3 = 20 remainder 1
61/4 = 15 remainder 1
61/5 = 12 remainder 1
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4 0
4 years ago
*HELP ME PLEASE* Consider the equation: 3x + 1 – 9 = 3(x + 2) + n.
Lubov Fominskaja [6]

Answer:

n  = -14

Step-by-step explanation:

Let us try to solve this equation for n;

     3x + 1 - 9  = 3(x + 2)  + n

     3x  - 8  = 3x + 6 + n

      3x - 3x -8 - 6  = n

              -14  = n

The value of n  = -14

This value is the value of the equation that will have no solution.

 To know if we are correct, let us input this value into the expression

        3x + 1 - 9  = 3(x + 2)  + n

        3x - 8  = 3x + 6 -14

 Collect like terms;

        3x - 3x  = 8 + 6 - 14

               0 = 0

4 0
3 years ago
Multiply the complex numbers (5 − 3i) and (9 + 2i).
amid [387]
The answer is

51-17i

Explanation :

5x95x2i-3ix9-3ix2i
45+10i-27i-6^2
45+10i-27i-6(-1)
45+10i-27i + 6
7 0
3 years ago
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