There are 420 students in a school.if 40% of them are girls.find the number of girls and boys
2 answers:
Answer:
There would be 168 girls and 252 boys
Step-by-step explanation:
40% or 0.40 x 420 = 168
420 - 168 = 252
Answer: 252 Boys, 168 Girls
Step-by-step explanation:
420 would be 100% of the school students.
If you wanna find the number of girls, you need to divide 420/100 in order to get 1% and then multiply it by 40.
So then you would get
420/100 x 40 = 168
Then in order to get the boys just subtract 168 from 420
420- 168= 252
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Answer:
by dividing the fractions
Answer:
Step-by-step explanation:Here's li
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bit.
x = 18 1/3
x - 20 + 2x = 35
- 20 + 3x = 35
3x = 35 + 20
3x = 55
x = 55/3
x = 18 1/3
Given
The numbers, 1/2, 1/8, and 1/10.
To find: The least common denominator.
Explanation:
It is given that,
1/2, 1/8, and 1/10 .
Then,
Therefore, the LCM is,
Hence, the least common denominator is 40.
Ok the formula for this is 2(lw +hw+hL)
2(30+35+42)=2(107)=214 square feet
