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anygoal [31]
3 years ago
13

Find the slope of the equations:

Mathematics
1 answer:
Serggg [28]3 years ago
4 0
3.        2x - y = 10
    2x - 2x - y = -2x + 10
                 -y = -2x + 10
                 -1         -1
                   y = 2x - 10
   Slope: 2

4.        5x - 2y = 10
    5x - 5x - 2y = -5x + 10
                 -2y = -5x + 10
                  -2          -2
                    y = 2.5x - 5

5.    y - y₁ = m(x - x₁)
    y - (-2) = -3(x - (-1))
       y + 2 = 3(x + 1)
       y + 2 = 3(x) + 3(1)
       y + 2 = 3x + 3
           - 2         - 2
             y = 3x + 1
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White raven [17]

3x + 7 = 1 3

3x = 13 - 7

3x = 6

x = 6/3

x = 2

7 0
3 years ago
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In​ 2012, the population of a city was million. The exponential growth rate was ​% per year.
saul85 [17]

Answer:

In​ 2012, the population of a city was 5.72 million.

Step-by-step explanation:

6 0
3 years ago
Suppose y varies directly with x. if y=-3 when x=5 find y when x=-1
Scrat [10]
\bf \begin{array}{cccccclllll}
\textit{something}&&\textit{varies directly to}&&\textit{something else}\\ \quad \\
\textit{something}&=&{{ \textit{some value}}}&\cdot &\textit{something else}\\ \quad \\
y&=&{{ k}}&\cdot&x

&&  y={{ k }}x
\end{array}
\\ \quad \\
\textit{we know that, when}
\begin{cases}
y=-3\\
x=5
\end{cases}\implies y=kx\implies (-3)=k(5)

solve for "k", to find the "constant of variation",
then plug it back in the y = kx, to get the equation
now
what's is y when x = -1?
well, just plug that in the equation with the found "k" value,
to get "y" :)
3 0
3 years ago
Read 2 more answers
Please do this question
crimeas [40]
It would be 16 more 6th graders that are not in either band or orchestra.
  15 6th Graders in band
  9 6th Graders in both classes
+18 6th Graders in orchestra
-----
42 6th Graders in either class

  100 6th Graders in total
 -42 6th Graders in either class
-------
58 6th Graders in neither class
 58-42= 16 more 6th Graders that are not in either class
You're welcome :)

7 0
3 years ago
You and your family went to Chick-Fil-A for dinner and the total bill was $27.95. Since you are a part of the Chick-Fil-A Club,
artcher [175]

Answer:

its 23.76

Step-by-step explanation:

I answered in the comments, but now I answered legit (there was a virus earlier lol)

5 0
3 years ago
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