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satela [25.4K]
1 year ago
7

WRITE AN EQUATION TO DESCRIBE THE RELATIONSHIP BETWEEN J AND Mj | 4 | 12 | 20m | 3 | 9 | 15

Mathematics
1 answer:
galina1969 [7]1 year ago
4 0

First, we can use the points (4,3) and (20,15) to find the slope of the line:

\begin{gathered} s=\frac{m_2─m_1}{j_2─j_1}=\frac{15─3}{20─4}=\frac{12}{16}=\frac{3}{4} \\ s=\frac{3}{4} \end{gathered}

Now we can find the relation function using the point (4,3) and the slope s=3/4

\begin{gathered} m─m_1=s(j─j_1) \\ \Rightarrow m─3=\frac{3}{4}(j─4)=\frac{3}{4}j─(\frac{12}{4})=\frac{3}{4}j─3 \\ m=\frac{3}{4}j \end{gathered}

therefore, the equation to describe the relationship between J and M is m=3/4j

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Step-by-step explanation:

Step 1:

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t = p × r

Let t stand for the total amount of sales tax

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Step 2:

Now, let us plug in what is given. We know that the purchase made cost $2,500:

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Step 3:

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All we need to do is divide each side by 2500 because the goal is get r all by itself

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Step 5:

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We're not done! Since we are dealing with a percentage, we would multiply .0432 by 100% and that gives us our final answer of


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