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Alexxandr [17]
2 years ago
15

Solve by substitution (x-2y=-4 and x=2y-4

Mathematics
2 answers:
Vanyuwa [196]2 years ago
7 0

Step-by-step explanation:

x - 2y = -4

x = 2y - 4

2y - 4 - 2y = -4

2y - 2y = 0

0 = 0

y = 0

x = 2 × 0 - 4

x = 0 - 4

x = -4

julsineya [31]2 years ago
4 0

Answer:

Step-by-step explanation:

(x-2y=-4)

(x=2y-4)

(2x+y=-8)

-y+8=2x

x=4-.5

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Answer:

A

Step-by-step explanation:

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3 years ago
Emma had some apples in her basket. Then, she picked 9 more apples. She gave 14 apples to Klara. She had 10 apples left. How man
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7 0
3 years ago
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melamori03 [73]

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Step-by-step explanation:

7 0
3 years ago
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yanalaym [24]

Answer:

7.5

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1.5

20

Step-by-step explanation:

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6 0
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Sindrei [870]

Answer:

If the bag contained 20% of blue marbles and 50% of green marbles than that would mean the bag would contain 30% of red marbles. The probability of picking a red marble from the bag would be considered unlikely.

Step-by-step explanation:

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