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Alik [6]
2 years ago
5

Help! Solve the system of linear equations by substitution. Check your solution.

Mathematics
1 answer:
Nina [5.8K]2 years ago
8 0
-2y=11-x
-7x+11-x=-13
-8x=-24
x=3
-2y=11-3
-2y=8
y=-4
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The population of mastertown was 23,000 in 2012. assume that mastertowns population increases at a rate of 2% per year. write an
Svetlanka [38]
Alright, let's interpret it, first.

The question is asking us to first find two percent of 23,000, then right an equation.

Alright, first, let's find two percent of 23,000. To find that we must do 0.02*23,000

I got 460

So we know that Mastertown's population is increasing by 460 people per year. All we have to do now is plug that into the equation.

Population (y)= 460* amount of years (x)

So our final equation is y = 460x

Hope this helped! Ask any questions about it!
4 0
3 years ago
A cylindrical candle has a volume of approximately 400cm^3 and is 8 cm tall. What is the radius of the candle?
katrin2010 [14]

Answer:

<h2><u>Solution</u><u> </u><u>:</u><u>-</u></h2>

We know that

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6 0
2 years ago
Read 2 more answers
Look at the two temperatures. How much have they changed by?<br> 4 degrees to -10 degrees
aliina [53]

Answer:

\displaystyle 14

Step-by-step explanation:

we are given two temperature

4 degrees and -10 degrees

since it says to figure out the changed

substract

\displaystyle 4 - ( - 10)

remove parentheses and change its sign

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simplify addition:

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and we are done!

4 0
3 years ago
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CORRECT ANSWERS ONLY
guapka [62]

Answer: Mika has not described a proportional relationship. Although it is a linear function, it does not pass through the origin.

Step-by-step explanation: if you place those points on a graph, they do create a linear function; the line just doesn't pass through the origin.

5 0
3 years ago
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How many solutions does this equation have?<br><br> a + 3 + 2a = -1 + 3a + 4
vekshin1
-8a+4 im pretty sure 

4 0
3 years ago
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