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Lena [83]
4 years ago
5

Percent of change, please help!

Mathematics
1 answer:
Mariana [72]4 years ago
5 0
%change=100(final-initial)/initial

In this case

%change=100(52-43)/43

%change=100(9)/43

%change≈20.9% (to the nearest tenth)

Since this is positive there was a 20.9% increase in the number of projects submitted this year versus last year.
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What is the measure of angle 6, if lines x and y are parallel, and angle 7 measures 121°? 121° 69° 59° 49°
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Answer:

59°

Step-by-step explanation:

From the diagram, shown in the attachment line x and y are parallel lines.

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The two angles will add up to 180 degrees.

\angle 7+\angle 6=180

But angle 7 measures 121°.

This implies that:

121+\angle 6=180

Solve for angle 6 to get;

\angle 6=180-121\

\angle 6=59\degree

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