The yard behind the Cindy’s house is rectangular in shape
1 answer:
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Answer:
y = 39
Step-by-step explanation:
550 x =
x 11 + y
550 x =
x 11 x 11 + y
550 x x
= 11 x 11 + y
550 = 11 x 11 + y
=
x 11 + y
50 = 11 + y
50 - 11 = y
39 = y
Answer:
Step-by-step explanation:
Since, The total number of student = 300
Out of which,
The number of students who are only in Maths = 120
And, The number of students who are only in Science = 50
While, the students who are not from any subject = 100
Hence, the number of student who are from both maths and science = Total student - Maths student (only) - science student (only) - None
= 300 - 120 - 50 - 100
= 30
That is, there are 30 students who are both from science and maths,
Thus, the probability of selecting one student who is both from maths and science = 30/300 = 1/10