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Ivan
1 year ago
9

The ratio of students who play musical instruments to students who play sports is 3:20. if there are 40 students who play sports

, how many students play musical instruments?
Mathematics
1 answer:
melomori [17]1 year ago
8 0

Based on the ratio, 6 students play musical instruments.

The mentioned problem can be solved using the concept of ratio and proportion. We will equate the two ratio. Let us assume the number of students who play musical instruments be x.

Forming the equation -

3 : 20 = x : 40

Rewriting the equation with respect to x

x = (40 × 3) ÷ 20

Performing multiplication and division on Right Hand Side of the equation

x = 120 ÷ 20

Performing division on Right Hand Side of the equation

x = 6

Therefore, 6 students play musical instruments.

Learn more about ratio and proportion -

brainly.com/question/19994681

#SPJ4

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Smaller number, if it's 8 x 1/8 you will get 1.
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Your part time job pays you $14/h. You work approximately 12 hours/week.
kirill115 [55]

Answer:

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168 * 4 = $ 672 )

     2. <u>BOX 2</u> = 282.95

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Eating outside = $50 A MONTH

12 .50 * 4   = 50   (4 WEEKS A MONTH )

Transportation =  131.2 A MONTH

32.80 * 4 = 131.2  (4 WEEKS A MONTH )

Movie =  $16.75 A MONTH

Charity = $ 40 A MONTH

10 * 4  (4 WEEKS A MONTH )

<u> MONTHLY EXPENSE </u> = 45 + 50 + 131.2 + 16.75 + 40

<u> MONTHLY EXPENSE </u> = 282.95 )

      3. <u>BOX 3</u> = 389.05

Money that can be saved = Monthly income - Monthly expense

Money that can be saved = 672 -  282.95

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<h2><em><u>please give brainliest </u></em></h2>
4 0
3 years ago
Given the system of equations, what is the solution? 5x - 4y = 7 x = 5 - 3/2 y
xenn [34]
The answer is A


You can solve this by equation the two equations, by substitution method or elimination. Let's choose the substitution since Equation 2 has already X isolated
-take the X in equation 2 and substitute in the first equation
So, You should have 5 (5-3/2 y) -4y =7
Get y ( I'll assume you know how to simplify and find y by yourself )
y=36/23
-Now take y and substitute it in the first equation or the second equation (it doesn't really matter)
Substituting y in Equation 2:
x=5- 3/2 (36/23)
=> x= 61/23

So answer is A where (x,y) is (61/23, 36/23)
8 0
3 years ago
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Tresset [83]
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5 0
3 years ago
I don't really understand pls help asap
maria [59]

Answer:

It is not proportional

Step-by-step explanation:

    To figure out if something is proportional they have to equal the same thing.

   As you can see on the problem 0.2 and 0.2 are the same thing, and since one is on the numerator and one is on the demoninator those two can cross out.

    Now we come to the 0.08 and the 0.8.

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So this is not proportional

<em>-I hope this helps! -Karen</em>      

3 0
2 years ago
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