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geniusboy [140]
2 years ago
6

Solve the simultaneous equation 3x+2y=4 4x+5y=10

Mathematics
1 answer:
hjlf2 years ago
7 0

Answer:

2x=4-2y

x=(4-2y)/3

4x+5y=10

4[(4-2y)/3]+5y=10

(16-8y)/3+5y=10

(16-8y+15y)=10*3

7y=30-16=14

y=2

Step-by-step explanation:

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Find the minimum value of
Lana71 [14]

Answer:

14

Step-by-step explanation:

2x + y = 20                                                                                     (1)

2x + 3y = 36                                                                                  (2)

(2) - (1) ⇔ (2x - 3y) - (2x + y) = 36 - 20

          ⇔ 2y = 16

          ⇔ y = 8                                                                               (3)

From (3) and (1), we have:

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⇔ 2x = 12

⇔ x = 6

So: C = x + y = 6 + 8 = 14

Conclusion : C = 14

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Answer:

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Step-by-step explanation:

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A=84

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3 years ago
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