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mixer [17]
3 years ago
5

8x-8y=80 and 4x-4y=-40

Mathematics
1 answer:
photoshop1234 [79]3 years ago
5 0
Multiply by 2 which is 8x-8y=-80then subtract from 8x-8y=80 you will get 0=160 so that it is no solution. Have a nice day.
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Solve the system by linear combination. Show all your work.<br><br> 9x+5y=35<br> -2x-5y=0
mars1129 [50]

Answer:

(5, - 2 )

Step-by-step explanation:

Given the 2 equations

9x + 5y = 35 → (1)

- 2x - 5y = 0 → (2)

Adding the 2 equations term by term will eliminate the y- term

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Substitute x = 5 into either of the 2 equations for value of y

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45 + 5y = 35 ( subtract 45 from both sides )

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5 0
3 years ago
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Romashka-Z-Leto [24]

Answer:

k = 9

Step-by-step explanation:

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Equating

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5 0
2 years ago
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Alenkinab [10]

Answer:

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Step-by-step explanation:

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Free_Kalibri [48]

Answer:

5 weeks

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Step-by-step explanation:

Bill owes his mother $300 and plans to pay her $25 every week.

Therefore, after w weeks he has to give her mother more C = 300 - 25w, amount of money.

Steve owes his mother $550 and plans to pay her  $75 every week.

Therefore, after w weeks he has to give her mother more C = 550 - 75w, amount of money.

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Now, the amount of money will be $(300 - 25 × 5) = $175. (Answer)

4 0
3 years ago
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