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guapka [62]
3 years ago
8

The ratio of boys to girls is 5:6 if there are72 girls what is the total number of students

Mathematics
1 answer:
Irina18 [472]3 years ago
5 0
72 represents 6 "units", so divide by 6 to get the number of people in one "unit":

72/6 = 12

Now multiply by 5 to get the number of boys:

12 * 5 = 60 boys
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stealth61 [152]
We can factor <span>4x^2-25 into (2x +5) * (2x -5) and
dividing by (2x -5)
yields (2x +5)

That neatened up pretty nicely.</span>
3 0
3 years ago
Which of the following must be true?
meriva

Answer:

BC < ED ⇒ answer A

Step-by-step explanation:

* Lets revise some facts in the triangle

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- If one angle in a triangle is larger than another angle in a triangle,

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* Lets solve the problem

- In the two triangles BCD and DEB

∵ CD = 8 and BE = 8

∴ CD = BE

∵ Side BD is a common side in the two triangles

- The third side in Δ BCD is BC and the third side in DEB is DE

∵ BC is the opposite side to the angle of measure 24°

∵ ED is the opposite side to the angle of measure 30°

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∴ The side opposite to the angle of measure 24° < the side opposite

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7 0
3 years ago
PLZ HELP ASAP <br> Find f(x) if it is known that f(x−3)=0.2x−0.6.
iren [92.7K]

Answer:

f(x) = 0.2x

Step-by-step explanation:

hello :

let : f(x) = ax+b    calculate a  and b

f(x-3) =a(x-3)+b = ax+b-3a.....(*)

given    :  f(x-3) = 0.2x-0.6...(**)

by (*) and(**) :  a= 0.2    and   b-3a = - 0.6

b-3(0.2) = - 0.6

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4 0
3 years ago
Which inequality represents all values of X for which the product below is defined
balandron [24]

The domain for which the function is defined is given by:

D. x \geq 4.

<h3>What is the domain of a function?</h3>

The domain of a function is the set that contains all possible input values for the function.

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The intersection of these two domains is x \geq 4, hence option D is correct.

More can be learned about the domain of a function at brainly.com/question/10891721

#SPJ1

6 0
2 years ago
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8_murik_8 [283]
<h3>Answer:</h3>

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<h3>Step-by-step explanation:</h3>

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___

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  (x -1)^2/(x -1) = 0 . . . . . . . . . . . . . . . . . . . factor

This is undefined for the only value of x that could possibly be a solution, x=1.

8 0
3 years ago
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