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2 years ago

The ratio of boys to girls in a class is 5:4. There are 36 Students in the class.How many students are girls

Mathematics

2 answers:

Brums [2.3K]2 years ago

6 0

Answer:

Step-by-step explanation:

let boys equal to 5x

and girls equal to 4x

so 4x+5x=36

X=4

so boys are 5*4

boys are 20

and girls are 16

so boys are 4 more than girls

babymother [125]2 years ago

3 0

Answer:

16 girls

Step-by-step explanation:

boys : girls : total

5 4 5+4 = 9

take the total number of people and divide by 9

36/9 = 4

Each number should be multiplied by 4

boys : girls : total

5*4 4*4 9*4

20 16 36

There are 16 girls

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3 years ago

What is 2 ÷ 1 6 ? StartFraction 1 Over 12 EndFraction 2 6 12

nexus9112 [7]

Answer:

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Step-by-step explanation:

I calculated 2 divided by 16, and got 0.125.

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2 years ago

Look at the system of equations below.

Paul [167]

Answer:

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:}$

$x=2,\:y=-1$

Step-by-step explanation:

Considering the system of the equation

$\begin{bmatrix}y=-2x+3\\ 4x-3y=11\end{bmatrix}$

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$10x-9+9=11+9$

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$x=2$

$\mathrm{For\:}y=-2x+3$

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$y=-2\cdot \:2+3$

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3 years ago

The volume of air in a balloon is represented by the function V (r) = four-thirds pi r cubed, where r is the radius of the ballo

Deffense [45]

Answer: You do not need calculus for this problem, as it is currently stated. Is something missing from the problem statement? If not, then just find the difference between the volumes. That will be the additional air required to inflate from the lower volume to the higher volume. For r in inches and V(r) in inches cubed,

V1(r) = (4/3)πr3

V2(2) = (4/3)π(r + 1)3

V2(r) - V1(r) = (4/3)π[(r + 1)3 - r3]

That is your function. You can simplify it further if you wish.

brainliest answer plz

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6 0

3 years ago

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melisa1 [442]

Answer: