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3 years ago

There are 27 students in a class. If 1/3 of the students are girls, how many boys are in the class?

Mathematics

2 answers:

Butoxors [25]3 years ago

7 0

Answer:

27x 1/3= 9

9 boys are there in the class

Alex73 [517]3 years ago

7 0

18 boys are in the class. If 1/3 of the class is girls (9 girls) then we can do 27-9=18.

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3 years ago

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tresset_1 [31]

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Step-by-step explanation:

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3 years ago

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3 years ago

Show that ( 2xy4 + 1/ (x + y2) ) dx + ( 4x2 y3 + 2y/ (x + y2) ) dy = 0 is exact, and find the solution. Find c if y(1) = 2.

fredd [130]

$\dfrac{\partial\left(2xy^4+\frac1{x+y^2}\right)}{\partial y}=8xy^3-\dfrac{2y}{(x+y^2)^2}$

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$\dfrac{\partial F}{\partial x}=2xy^4+\dfrac1{x+y^2}\implies F(x,y)=x^2y^4+\ln(x+y^2)+f(y)$

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3 years ago

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photoshop1234 [79]

Step-by-step explanation:

It's telling you to plug in the numbers inside the parenthesis as x

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4 years ago