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ivann1987 [24]
3 years ago
7

9. Do you think the claim that students majoring in engineering are more likely to be in the marching band than students for oth

er majors is accurate? Explain your answer.
Mathematics
1 answer:
katen-ka-za [31]3 years ago
4 0

well it depends on who, how well, if they understand how to read music, ect.

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Suppose a playlist on an MP3 music player consists of 100 songs, of which six are by a particular artist. Suppose that songs are
madam [21]
Because binomials is part of math and so is x
8 0
3 years ago
= X<br> 20<br> 100<br> 60<br><br> Please help me
satela [25.4K]

Answer:

x = 100

Step-by-step explanation:

(100-40)/2

= 60/2

= 30

So it's 100

Answered by GAUTHMATH

5 0
2 years ago
A chemist whishes to prepare 100 liters of 45% purity of sulphuric acid .He has two kinds of acid solutions in stock ,one is 55%
tester [92]

Answer:

the chemist should use 60 liters of 55% solution and 40  litres of 30% solution in order to prepare 100 liters of 45% purity of sulphuric acid.

Step-by-step explanation:

From the given information,

Let x be the litres of 55% pure solution

Let y be the litres of 30% pure solution

Also;

Given that our total volume of solution is  100 litres

x+y =100  ---- (1)

The total solution of pure by related by the sum of the individual pure concentrations to make up the concentration of final solution.

(0.55)(x)+(0.30)(y) = 0.45(100) ---- (2)

From equation (1)

Let ; y = 100 - x

Replacing the value for y = 100 - x into equation (2)

(0.55)(x)+(0.30)(100-x) = 0.45(100)

0.55x + 30 - 0.30x = 45

0.55x - 0.30x = 45 - 30

0.25x = 15

x = 15/0.25

x = 60 liters of 55% solution

From ; y = 100 - x

y = 100 - 60

y = 40  litres of 30% solution.

Therefore, the chemist should use 60 liters of 55% solution and 40  litres of 30% solution in order to prepare 100 liters of 45% purity of sulphuric acid.

7 0
3 years ago
PLEASE HELP ME!
marshall27 [118]

---------------------

given:

 = cost of Brazilian coffee in mixture

 = cost of Venezuelan coffee in mixture

 = cost of mixture

---------------------

Now I can rite these equations:

(1) 

(2) 

Multiply both sides of (2) by  and

subtract from (1)

(1) 

(2) 

and, since

288 kg of Brazilian coffee and 96 kg of Venezuelan coffee are needed

4 0
2 years ago
Will mark brainliest!
Maurinko [17]

╔═.✵.══════════╗

      A  N  S  W  E  R

╚══════════.✵.═╝

☆ ☆ ☆

983000

<em>Hope this helped, love!</em>

☆ ☆ ☆

6 0
2 years ago
Read 2 more answers
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