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shutvik [7]
3 years ago
7

Y=-3x - 4 y= 2x + 1

Mathematics
1 answer:
Naily [24]3 years ago
4 0
\left \{ {{y=-3x-4} \atop {y=2x+1}} \right. \\\\ substitution\ method\\\\
-3x-4=2x+1\ \ \ | subtract\ 2x\\\\
-5x-4=1\ \ \ | add\ 4\\\\
-5x=5\ \ \ | divide\ by\ -5\\\\
x=-1\\\\
y=2x+1=2*(-1)+1=-2+1=-1\\\\
Solution:\\ \left \{ {{y=-1} \atop {x=-1}} \right.
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Answer:

Step-by-step explanation:

The initial height of a Japanese maple sapling is 14 inches.

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The expression for arithmetic progression is

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From the information given

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d = 2.5 because it is the difference in height between 2 consecutive months

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