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laiz [17]
3 years ago
6

A university lecture hall has 100 seats. During class, 30% of the seats are empty. How many students are attending class?

Mathematics
2 answers:
Alika [10]3 years ago
7 0

Answer:

70 students

Step-by-step explanation:

100=100% so -30 to get 70 students

Shtirlitz [24]3 years ago
3 0

Answer:

70 students are attending class

Step-by-step explanation:

100% - 30% = 70%

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Two agent angles of a parallelogram are in the ratio 1 by 3 find the measures of all the angles​
zalisa [80]

Answer:

The measure of all the angles are;

45°, 135°, 45°, and 135°

Step-by-step explanation:

The given parameters are;

The ratio of two adjacent angles of the parallelogram = 1:3

Let x represent one of the adjacent angles, and let y represent the other adjacent angle

Given that two adjacent angles of a parallelogram are supplementary, we have;

x + y = 180°

x:y = 1:3

Therefore, y = 3 × x = 3·x, which gives;

x + 3·x = 180°

4·x = 180°

x = 180°/4 = 45°

y = 3 × x = 3 × 45° = 135°

Given that opposite interior angles of a parallelogram are equal, we have, the measure of all the angles are;

45°, 135°, 45°, and 135°.

8 0
3 years ago
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GREYUIT [131]
Your answer would be the first one because a reflection is when the object is facing itself 
The red corner should face itself 
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3 years ago
What is the Magnitude of 6.8
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How many are there because there is no pic

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