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max2010maxim [7]
3 years ago
11

Solve the system by substitution. -3x+3=y -x+3y=29

Mathematics
1 answer:
Bond [772]3 years ago
6 0

Answer:

x=-2 , y=9

Step-by-step explanation:

\left \{ {{-3x+3=y} \atop {-x+3y=29}} \right.\\-x+3(-3x+3)=29\\-x-9x+9=29\\-10x=29-9\\-10x=20\\x=\frac{20}{-10} =>x=-2\\\\-3x+3=y\\-3(-2)+3=y\\6+3=y=>y=9

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Convert 3.0x10^10 cm/s to ft/s
Paladinen [302]
The number that is given in the question and that needs to be converted is 
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7 0
3 years ago
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Step-by-step explanation:

So we can use some angle rules that I forget the name of to solve this.

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