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Vaselesa [24]
3 years ago
9

5 x + 2 y = 26 3 x + 2 y = 14

Mathematics
2 answers:
crimeas [40]3 years ago
5 0

Answer:

x = 6, y =-2

Step-by-step explanation:

5x+2y = 26

3x+2y = 14

Subtract the two equations to eliminate y

5x+2y = 26

-3x-2y = -14

---------------------

2x       = 12

Divide by 2

2x/2 = 12/2

x = 6

Now find y

3x+2y = 14

3*6+2y = 14

18+2y = 14

Subtract 18 from each side

18+2y-18 =14-18

2y = -4

Divide by 2

2y/2 = -4/2

y = -2

mylen [45]3 years ago
3 0

Answer:

x=6

y=-2

Step-by-step explanation:

5x+2y=26

3x+2y=14

subtract

2x=12

x=12/2=6

3(6)+2y=14

2y=14-18=-4

y=-4/2=-2

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The answer is: <u>2(k2−4k)(2c+5)</u>

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Step:

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6 0
3 years ago
Two angles in a triangle have measures of 23° and 98º.
shepuryov [24]

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Step-by-step explanation:

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brainliest plz

6 0
3 years ago
The sum of two polynomials is 10a2b2 – 8a2b 6ab2 – 4ab 2. if one addend is –5a2b2 12a2b – 5, what is the other addend? 15a2b2 –
Brrunno [24]

The other polynomial addend, when the sum of two polynomials is 10a2b2 – 8a2b 6ab2 – 4ab  is 15a²b²- 20a²b + 6ab² - 4ab + 7.

<h3>What is polynomial?</h3>

Polynomial equations is the expression in which the highest power of the unknown variable is n (n is real number).

The sum of two polynomials is,

10a^2b^2 - 8a^2b+ 6ab^2 - 4ab+2

The one polynomial addend is,

-5a^2b^2 +12a^2b - 5

Let suppose the other polynomial addend is f(a,b). Thus,

(-5a^2b^2 +12a^2b - 5)+f(a,b)=(10a^2b^2 - 8a^2b+ 6ab^2 - 4ab+2)

Isolate the second polynomial as,

f(a,b)=(10a^2b^2 - 8a^2b+ 6ab^2 - 4ab+2)-(-5a^2b^2 +12a^2b - 5)\\f(a,b)=10a^2b^2 - 8a^2b+ 6ab^2 - 4ab+2+5a^2b^2 -12a^2b + 5

Arrange the like terms as,

f(a,b)=10a^2b^2+5a^2b^2 - 8a^2b -12a^2b+ 6ab^2 - 4ab + 2+5\\f(a,b)=15a^2b^2- 20a^2b + 6ab^2 - 4ab + 7

Hence, the other polynomial addend, when the sum of two polynomials is 10a2b2 – 8a2b 6ab2 – 4ab  is 15a²b²- 20a²b + 6ab² - 4ab + 7.

Learn more about polynomial here;

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jenyasd209 [6]
Step 1 is wrong it should be: 2x - 3x - 1=3
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4 years ago
Sonia's check at Aubrey's Kitchen is $14.25. In order to leave a 10% tip, how much should she pay? Round to the nearest cent.
Sidana [21]

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Step-by-step explanation:

14.25x0.10=1.425

7 0
3 years ago
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