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Alona [7]
2 years ago
11

Which equation is the result of adding these two equations -2x+4y=17

Mathematics
1 answer:
Katyanochek1 [597]2 years ago
4 0

The right answer is Option C.

Step-by-step explanation:

Given equations are;

-2x+4y=17   Eqn 1

3x-10y= -3   Eqn 2

Adding Eqn 1 and Eqn 2;

(-2x+4y)+(3x-10y)=17+(-3)\\-2x+4y+3x-10y=17-3\\3x-2x-10y+4y=14\\x-6y=14

The right answer is Option C.

Keywords: linear equations, addition

Learn more about linear equations at:

  • brainly.com/question/4939434
  • brainly.com/question/5002251

#LearnwithBrainly

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3 years ago
Joshua has (10+6a^2-5a) dollars in his savings account. Maranda had (4a^2a+3) dollars in her saving account how much more money
solniwko [45]

Answer:

Joshua has 2a^2 -6a + 7 more than Maranda.

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Joshua has 6a^2 -5a + 10 dollars and Maranda has 4a^2 + a + 3 to find out how much more money Joshua has we need to subtract the amount he has by the amount of Maranda's account. Since both expressions are pollynomial we'll have to subtract the numbers wich are multiplying the same power, so we do as follow:

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6a^2 - 5a + 10 - 4a^2 -a -3

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3 0
2 years ago
Read 2 more answers
Help me please I have no idea on how to do this. Thanks
andriy [413]
1) P=2w +2l
46=2w +14
32=2w
16= w or width

2) A=lw
A=7 x 12
A= 84

3) A= 12 x 21
A= 252
6 0
3 years ago
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