tania911
28.06.2021 •
Mathematics
If the first and last terms of a trinomial are perfect squares, the trinomial is a perfect square
trinomial.
True
O False
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Ответ:
A trinomial is a perfect trinomial if the first and last terms are positive, perfect squares and the middle term is twice the product of their square roots.
Therefore, if you mean perfect as in positive, the answer is True.
Ответ:
The given ratio is 3:4 this means there are 7 people in each unit of this ratio.
It is stated that there are 35 students in total . That would mean that there are
5 Total sets of students in this class . When we multiply the numbers in our starting ratio by this multiple of 5 , our ratio now becomes 15 : 20
15 and 20 do indeed add up to 35 … But , our question wants to know how many more GIRLS are in the class . Boys were calculated to be 15 in number .
Girls were calculated to be 20 in number .
We now know there were 5 more girls than boys in that class ..
5 is your answer .
1.3K views
Vivek Sharma
Answered January 9, 2020
total number of student in class=35
let the number of boys be 3x
let the number of girls be 4x
so therefore 3x+4x=35 =>7x=35 =>x=5
so therefore number of boys in class is 3x=>3(5)=15
and number of girls in class is 4x=>4(5)=20
so there are 20–15=5 more girls in class than boys.
5.3K viewsView 1 Upvoter
Ashis Ghosh, former Retired officer at State Bank of India
Answered April 8, 2019 · Author has 4.4K answers and 931.6K answer views
Let the number boys in the class be b. So b/(35-b)=3:4, or 105-3b=4b, or 7b=105, or b=15. The number of girls in the class is 35-15=20 20-15=5
Ans: there are 5 more girls than the number of boys in the class.
576 viewsView 1 Upvoter
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Sandy Singh
Answered October 27, 2020 · Author has 460 answers and 35.3K answer views
Boys to girls
= 3:4
girls are 4/7
Number of girls
= 4/7*35/1
= 20 girls
class of 35 girls are 20 then boys will be 15 which makes there are 5 more girls than boys
15 views
Wilfred Lalonde, Project Manager (1991-present)
Answered September 20, 2019
5
274 viewsView 1 Upvoter
Maruprolu Venkata Subbareddy
Answered October 11, 2020
Given that,
Total students =35,
Given ratio=3:4,
3+4=7 parts,
7parts=35
1part=?
35/7=5
Diff b/w boys and girls part=1
So ans 5.
33 views
Bruce Conner, former Director of Business Development (Retired) at A Fortune 500 Company (1980-2016)
Answered June 20, 2019 · Author has 471 answers and 198K answer views
5. 3+4=7
35/7=5
5*3 =15 boys
5*4=20 girls
20–15 =5
371 views
Diana Eade
Answered December 2, 2019
5
Add 4+5 =7
35÷7=5
4×5=20 girls
3×5=15 boys
20-15=5 more girls than boys.
236 views
Hungenahalli Sitaramarao Badarinath, Ph.D. in Civil Engineering. Maths keeps one mentally active.
Answered July 14, 2018 · Author has 28.8K answers and 15.5M answer views
The difference of girls to boys = 35(4–3)/(4+3) = 5.
699 views
Hemant Jaishi
Answered May 8, 2020
five more girls are there in the class.
50 views
David Ong
Answered May 10, 2020
15 Boys, 20 Girls (Ratio 3:4)
5.
54 views
Lorine Birir, Admin
Answered January 12, 2020
15 boys and 20 girls this 5 more girls than boys
52 views
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