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Savatey [412]
3 years ago
12

Which choice is the solution for this system ? 2x − 5y = 14 x + 3 2 y = 5

Mathematics
1 answer:
VashaNatasha [74]3 years ago
3 0

Answer:

The required solution is (5.75,-0.5). It can be written as (\frac{11}{4},-\frac{1}{2}).

Step-by-step explanation:

The given equations are

2x-5y=14                       .... (1)

x+\frac{3}{2}y=5            .... (2)

Multiply the equation (2) by 2.

2x+3y=10                     .... (3)

Subtract equation (1) from equation (3).

2x+3y-(2x-5y)=10-14

2x+3y-2x+5y=-4

8y=-4

y=-\frac{1}{2}=-0.5

Put this value in equation (1).

2x-5(-0.5)=14

2x+2.5=14

2x=11.5

x=5.75

Therefore the required solution is (5.75,-0.5). It can be written as (\frac{11}{4},-\frac{1}{2}).

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How old is eric and his father now if eric is 33 years younger than his father and the product of their ages is 70
m_a_m_a [10]
Not 100% sure but Eric can be 18.5 years old and his father can he 51.5 years old.

52 - 33 = 19; 52 + 19 = 71
51 - 33 = 18; 51 + 18 = 69
51.5 - 33 = 18.5; 51.5 + 18.5 = 70

I hope this helps.
3 0
3 years ago
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3 years ago
Solve for b 2 in A = h(b 1+b 2), if A = 16, h = 4, and b 1 = 3. b 2 =
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Answer:

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Step-by-step explanation:

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4th time posting this dont skip need help ASAP and pls hurry bc i dont have much time i will give 10 pts + brainliest
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Answer:

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Step-by-step explanation:

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