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xenn [34]
3 years ago
11

Solve the following system of equations. Express your answer as an ordered pair in the format (a,b), with no spaces between the

numbers or symbol.
2x+7y=-7

-4x-3y=-19

Mathematics
2 answers:
Harrizon [31]3 years ago
7 0
<span> 2x+7y=-7 / x 2
 4x+14y=-14+
-4x - 3y =-19
__________
14y-3y= -33
11y= -33
y = -3
2x = -7-7(-3)
2x = 21-7
2x = 14
x = 7</span>
Margarita [4]3 years ago
6 0
(7,-3). Hope this helps! 
~Astro, Helper in Training 

(2x+7y=-7 is in red, and -4x-37=-19 is in blue) 

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Read 2 more answers
PLEASE HURRY ASAP!
cestrela7 [59]

Using conversions of mixed numbers, the numbers that are equivalent to 2 and 7/9 are given by:

25/9 and 2.777.

<h3>What are the conversions of the mixed number 2 and 7/9?</h3>

To convert to decimal, we just add the integer part with the fractional part converted to decimal(dividing the numerator by the denominator), hence:

2 and 7/9 = 2 + 7/9 = 2.7777.

To convert to fraction, the procedure is similar, we just apply the least common multiple to add the fraction, as follows:

2 + \frac{7}{9} = \frac{2 \times 9 + 7}{9} = \frac{25}{9}

Hence the numbers that are equivalent to 2 and 7/9 are given by:

25/9 and 2.777.

More can be learned about conversions of mixed numbers at brainly.com/question/21610929

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4 0
1 year ago
By what number (5/4)^6 should be divided to get (25/16)^8?
Naya [18.7K]

Answer:

X=(5/4)^-10

Step-by-step explanation:

(5/4)^6÷x=(25/16)^8

(5/4)^6÷x=(5/4)^16

1/X==(5/4)^16÷(5/4)^6

X=(5/4)^6÷(5/4)^16

X=(5/4)^-10

So the value of X is (5/4)^-10

6 0
3 years ago
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