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3 years ago

The ratio of boys to girls is 5:6 if there are 72 girls what is the total number of students in the year level?

Mathematics

2 answers:

sweet [91]3 years ago

5 0

Answer:

60 boys + 72 girls = 132 total students

Step-by-step explanation:

72/6 = 12

12*5= 60

Hope this helped :)

ICE Princess25 [194]3 years ago

4 0

Answer:

there is a 60 boys compared to girls

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enyata [817]

Answer:

(a) Increase the differences between the sample means this will increase the Numerator.

(b) Increase the sample variances will increase the denominator.

Step-by-step explanation:

F Ratio = Variance between treatments/ Variance within treatments.

Here,

(a) Increase the differences between the sample means:

- Will increase the Numerator and

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(b) Increase the sample variances:

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3 years ago

Given right triangle MNL what is the value of cos(M)?

FromTheMoon [43]

Step $1$

<u>Find the length of the side MN</u>

we know that

Applying the Pythagorean Theorem

$ML^{2} =NL^{2} +MN^{2}$

Solve for MN

$MN^{2}=ML^{2} -NL^{2}$

in this problem

$ML=25\ units\\ NL=15\ units$

Substitute in the formula above

$MN^{2}=25^{2} -15^{2}$

$MN^{2}=400$

$MN=20\ units$

Step $2$

<u>Find the value of cos (M)</u>

we know that

in the right triangle MNL

$cos (M)=\frac{adjacent\ side\ angle\ M}{hypotenuse}$

$adjacent\ side\ angle\ M=MN=20\ units\\ hypotenuse=ML=25\ units$

Substitute

$cos (M)=\frac{20}{25}$

$cos (M)=\frac{4}{5}$

$cos (M)=0.8$

therefore

The answer is

The value of cos(M) is equal to $0.8$

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3 years ago

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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