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myrzilka [38]
3 years ago
8

In the auditorium there are 27 red chairs and 63 blue chairs. what is the ratio of the number of red chairs to the number of blu

e chairs?
Mathematics
1 answer:
GuDViN [60]3 years ago
3 0
27:63
divide both sides by 9
your answer is 3:7
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In the adjoining figure, the parallel lines are marked by arrow lines. The value of angle 1 is:
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Answer:

20°

Step-by-step explanation:

40°, 70° and 90° are the measures of the three angles of the quadrilateral.

Measure of fourth angle of the Quadrilateral

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Measure of angle 1 will be equal to the measure of the linear pair angle of 160° as they are corresponding angles.

Thus,

m\angle 1 = 180\degree- 160\degree

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Alternate method:

m\angle 1 = 180\degree- [360\degree-(40\degree+70\degree+90\degree)]

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distance between two points is

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