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erik [133]
4 years ago
6

In a class of 20 students 3/5 are boys. If 4 more boys join the class, what fraction of the class are boys now?

Mathematics
2 answers:
cupoosta [38]4 years ago
6 0

if 4 more boiiz join the class it will be 2/5

IgorLugansk [536]4 years ago
6 0

Answer:

2/3 of the class is now boys

Step-by-step explanation:

If you start with 3/5 of 20 is boys that would mean there were 12 boys. If you add 4 more that makes it 16/24 and you can simplify that fraction to 4/6 and simplified even further is 2/3.

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A die is rolled 20 times. given that three of the rolls came up 1, five came up 2, four came up 3, two came up 4, three came up
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Solution:

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            = Arrangement of 6 numbers (A,B,C,D,E,F) in 6! ways and then arranging outcomes

= 6! × [ 3! × 5! × 4!×2!×3!×3!]

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8 0
3 years ago
FCD=x+41, BCF=x+78, BCD=95. Find x
Lorico [155]
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Dmitry [639]

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Step-by-step explanation:

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