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Gala2k [10]
3 years ago
9

In a survey of 150 students, 90 students were taking algebra and 30 were taking biology. What is the least number of students wh

o could have been taking both courses? What is the greatest number of students who could be taking both courses? What is the greatest number of students who could have been taking neither course?
Mathematics
2 answers:
Alex787 [66]3 years ago
7 0

30 students with a course and 60 with  out
Reil [10]3 years ago
5 0
30 students could of been taking both courses and 60 with no course
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Step-by-step explanation:

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Lines AD and BC are parallel.
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*see attachment for the missing figure

Answer:

Angle ADE = 45°

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Step-by-step explanation:

Since lines AD and BC are parallel, therefore:

Given that angle Angle CBE = 45°,

Angle ADE = Angle CBE (alternate interior angles are congruent)

Angle ADE = 45° (Substitution)

Angle DAE = Angle ACB (Alternate Interior Angles are congruent)

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