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Lynna [10]
3 years ago
7

Subtract the equations.

Mathematics
1 answer:
Lostsunrise [7]3 years ago
6 0

Answer:

0x+2y=22

Step-by-step explanation:

Set them equal to each other, (5x+4y=25)-(5x+2y=3). Distribute the negative into the right equation, (5x+4y=25)(-5x-2y=-3). Then combine like terms to get your answer.

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Divide.
slavikrds [6]

Answer:

(24y^3x-20y^5x^2)/(-3y^5x^2)

= y^3x(24-20y^2x))/(-3y^5x^2)

=(24-20y^2x)/(-3y^2x)

=(24/(-3y^2x))-((20y^2x)/(-3y^2x))

=(-8/y^2x)-(-20/3)

=-8/y^2x + 20/3

7 0
2 years ago
Prove by contradiction that the interval (a,<br> b.has no minimum element.
Snowcat [4.5K]

Assume (a,b) has a minimum element m.


m is in the interval so a < m < b.


a < m


Adding a to both sides,


2a < a + m


Adding m to both sides of the first inequality,


a + m < 2m


So


2a < a+m < 2m


a < (a+m)/2 < m < b


Since the average (a+m)/2 is in the range (a,b) and less than m, that contradicts our assumption that m is the minimum. So we conclude there is no minimum since given any purported minimum we can always compute something smaller in the range.


8 0
3 years ago
Factor the expression. 40z – 20
erik [133]
40z - 20 
   
     GCF=20&#10; 

20 ( \dfrac{40z}{20} -  \dfrac{20}{20}) 

20(2z-1)
7 0
3 years ago
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Math for 3rd grade plz help
n200080 [17]

Answer:

18 r2

Step-by-step explanation:

8 0
2 years ago
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A function, f(x) = 4x + 5, has a domain 0 &lt; x &lt; 50. What is its range?
Roman55 [17]

Answer:

f(x) = 4x+5 ; 0 ≤ x ≤ 50

 

The range is the possible output values of f(x)

 

4(0) + 5 = 5       smallest output value in range

4(50) + 5 = 55    largest output value in range

 

The outputs are between 5 and 55 including the endpoints so

the range is [5, 55]

7 0
3 years ago
Read 2 more answers
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