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trasher [3.6K]
3 years ago
10

-3x+4y=12 and 2x+y=-8. How do you solve this using substitution ?

Mathematics
1 answer:
elena-s [515]3 years ago
8 0

Answer:

in point from: (-4,0) in equation from: x=-4,y=0

Step-by-step explanation:

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A piano has 88 keys. Fifty-two of the keys are white.
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Answer:

36

Step-by-step explanation:

88 - 52

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Which equals 23 kilograms?
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C

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-3(n+5)=-21what is ghe answer<br><br>​
charle [14.2K]
-3n-15=-21
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6 0
3 years ago
Please help!!! MAX POINTS I CAN DO i put it in math because i trust the math people more
valkas [14]

Answer:

The 1st Blank is: A pure substance, or simply a substance

The 2nd blank on the left is: Elements

The 3rd blank on the right is: Compounds

The 4th blank which is the second middle one is: A mixture

The 5th blank which is the bottom left one is: Heterogeneous mixture

The 6th blank which is the last one on the bottom right is: Homogeneous mixture

Look at the step-by-step explanation if you get confused at the bottom.


Step-by-step explanation:

The 1st Blank: I would just put a pure substance.

The 2nd blank on the left: They are three characteristics of elements but just put elements.

The 3rd blank on the right: They are three characteristics of compounds but just put compounds.

The 4th blank which is the second middle one is: The characteristics of a mixture but just put a mixture.

The 5th blank which is the bottom left one: Are the characteristics of a heterogeneous mixture but just put heterogeneous mixture.

The 6th blank which is the last one on the bottom right: Are the characteristics of a homogeneous mixture but just put homogeneous mixture.


3 0
3 years ago
Read 2 more answers
Julio practiced his trumpet on each 6 days during a week. What is the mean of minutes Julio practiced over these 6 days.
Novay_Z [31]
21+30+39+43+58+67 = 258.  
258/6 = 43

43 minutes
4 0
3 years ago
Read 2 more answers
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