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artcher [175]
3 years ago
7

The school orchestra has 20 woodwinds, 20 brass instruments, 45 percussionists and 15 strings. Select the portion of the instrum

ents that are brass. Mark all that apply.
Mathematics
2 answers:
Alona [7]3 years ago
6 0

Find total instruments:

20+20+45+15 = 100

20 are brass

The portion would be number of brass over total:

20/100 which reduces to 1/5 are brass

Alenkasestr [34]3 years ago
4 0

Answer:

20% or 1/5

Step-by-step explanation: add all the instruments together and divide brass by all the instruments 20/100

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Malachy and Paul win some money and share it in the ratio 4:5. Malachy gets £44. How much did Paul get?
Ksju [112]

9514 1404 393

Answer:

  £55

Step-by-step explanation:

Multiplying the given ratio units by 11 tells you the answer.

  4 : 5 = 44 : 55

Paul got £55.

3 0
2 years ago
Can somebody help me with the Math's questions with Forming and Solving Equations? Thanks
mojhsa [17]

Step-by-step explanation:

the area of the square is (x+2)^2 and the factored form of it is x^2+4x+4

since we know the area is = 7 therefore

x^2 + 4x +4 = 7 and x^2 + 4x = 3

if you want to find the value of x :

x^2+4x+4 = 7

x^2+4x -3 = 0

(x-3)(x-1)=0

x = 3 or

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5 0
3 years ago
If a and b can be replaced with any whole number in the equation a+ b=19. then there is?
Schach [20]

Answer:

C

Step-by-step explanation:

There isnt infinite because there is an answer of 19, and only so many whole numbers can add up to 19

There isnt 1 because 11+8 and 5+14 both equal 19

4 0
3 years ago
Is 27/51 equal to 18/34
Nata [24]
Yes.
27/51-18/34=0
if something minus something is zero, then the 2 numbers subtracting each other are equal. :)
7 0
3 years ago
Read 2 more answers
17 Q Graph the inequality n a coordinate plane
aliina [53]
The resultant graph is shown in the attached image.

Explanation:
Before we begin, remember that when we multiply by a negative sign, we flip the sign of the inequality
The given inequality is:
-y ≤ 3x - 5
We will multiply both sides by -1 to get a positive y vale. This will give us:
y ≥ -3x + 5

Now, to graph the inequality, we will first draw the line y = -3x + 5 and then shade the region having y values greater than the line. 
To know the region, you will simply use trial and error method for random points on the two sides of the line.

The final solution would be as shown in that attachment.

Hope this helps :)

7 0
3 years ago
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