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I am Lyosha [343]
3 years ago
5

The temperature dropped 75 degrees to 50 degrees. what was the percent decreased in temperature

Mathematics
1 answer:
oksian1 [2.3K]3 years ago
5 0
Easy. The temp dropped 25 degrees.
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Step-by-step explanation:

We are given that

(3/4,2/3),(1/4,1),(1,1/2) and (1/2,1)

x_1=\frac{3}{4}

y_1=\frac{2}{3}

x_2=\frac{1}{4},y_2=1

x_3=1,y_3=\frac{1}{2}

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Direct proportion:

\frac{x}{y}=k

Inverse proportion:xy=k

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Therefore, it is not in direct proportion.

\frac{1}{4\times 2}=\frac{1}{8}\neq\frac{1}{2}

\frac{1}{\frac{1}{2}}=2\neq \frac{1}{2}

x_1y_1=\frac{3}{4}\times \frac{2}{3}=\frac{1}{2}

x_2y_2=\frac{1}{4}\times 2=\frac{1}{2}

x_3y_3=1\times \frac{1}{2}=\frac{1}{2}

x_4y_4=\frac{1}{2}\times 1=\frac{1}{2}

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Hence, the given points form an inverse variation .

xy=\frac{1}{2}

y=\frac{1}{2x}

Option A and D is true.

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What is the equivalent expression for 2X -4 minus X
g100num [7]

Answer:

Step-by-step explanation:

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