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Alex777 [14]
2 years ago
9

Use the substitution method to solve the system of equations: y = 2x + 7; x = 9

Mathematics
1 answer:
Fiesta28 [93]2 years ago
8 0
Y=25 ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
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An oil refinery is located on the north bank of a straight river that is 2 km wide. A pipeline is to be constructed from the ref
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To minimize the cost, we take the straight distance from the refinery to the other side of the river as 2 km. Also, the 7 km will be the distance that has to be traveled by the pipeline in land. The total cost, C, is therefore,
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3 years ago
Identify the perimeter show work
Helen [10]

Answer:

60

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The perimeter is the measurement around an object.

So first you multiply the 20 and the 10 by 2.

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3 years ago
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3 years ago
What is the missing output value in the function table below
elena-s [515]

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2

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Help me with this problem please
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