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hram777 [196]
3 years ago
9

Can you answer these questions

Mathematics
2 answers:
bearhunter [10]3 years ago
8 0
70 people are in the band
10 flute players
20 trombone players
10 drummers
30 trumpet players
Darya [45]3 years ago
3 0
1. There are 70 people in the band (7 x 10)
2. 10 flute players. There are 10 people in each row.
3. 20 trombone players. There are 10 people in each row.
4. 10 drum players. Ibidem.
5. 30 trombone players. Ibidem.


You might be interested in
Solve for (a+1)/2=1/a.
LenKa [72]

Hello!

To solve this, you are trying to convert one side to a quadratic equation and the other to just 0. Then, solve the equation.

----

First, move the /2 to the other side of the equation.

(a+1)/2 = 1/a

a+1 = 2/a

Next, multiply both sides by a.

a+1 = 2/a

a^{2} +a=2

And then subtract both sides by 2. This will get you to a quadratic equation.

a^{2} +a=2

a^{2} +a-2=0

Now, factor the equation. When we're factoring, we are looking for the form (a + b)(a + c), where b + c must equal 1 (the coefficient of a) and b*c must equal -2. In this case, b = 2, and c = -1.

Therefore:

a^{2} +a-2=0

(a + 2)(a - 1) = 0

To get the answer, recall that anything multiplied by 0 is equal to 0. Therefore, to get the left side to equal 0, either (a + 2) or (a - 1) must equal 0. To do this, a must either be -2 or 1.

Therefore, a = -2, or a = 1.

----

Check your work:

(-2 + 1)/2 = 1/-2

-1/2 = -1/2

(1 + 1)/2 = 1/1

2/2 = 1/1

1 = 1

----

Hope this helps!

6 0
3 years ago
<img src="https://tex.z-dn.net/?f=%283%20%2B%20i%29%282%20%2B%20i%29" id="TexFormula1" title="(3 + i)(2 + i)" alt="(3 + i)(2 + i
Papessa [141]

Answer: you add 3+2 and that =5. There are 2 i. That is equal to 2i. Final answer: 5+2i

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Consider the diagram below.<br> Which of the following statements is correct?
Nutka1998 [239]

Answer:

A

Step-by-step explanation:

The diagram shows two parallel lines XY and WV.

1. Parallel lines XY and WV are cut by transversal XW, then angles YXZ and VWZ are congruent as alternate interior angles.

2. Parallel lines XY and WV are cut by transversal YV, then angles XYZ and WVZ are congruent as alternate interior angles.

AA similarity theorem states if two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar.

So, \triangle XYZ\sim \triangle WVZ by AA similarity

7 0
4 years ago
Read 2 more answers
Find the mean, median, mode, and range of this data: 49, 49, 54, 55, 52, 49, 55. If necessary, round to the nearest tenth.
Zigmanuir [339]
The mean is the average.
So, to find the mean you want o add up all of the numbers and then divide by the number of numbers.

49 + 49 + 54 + 55 + 52 + 49 + 575 = 363
363 / 7 = 51.85
Rounded to 52

For the median you want o line all of your number up from least to greatest and then find the middle number.

49,49,49,52,54,55,55

Your median is 52

The mode is the number that is listed most often

49 is listed 3 times
54 is listed 1 time
52 is listed 1 time
55 is listed 2 times

So, your mode is 49




4 0
4 years ago
653 divided by 7<br>459 divided by 4<br>2354 divided by 9
olya-2409 [2.1K]
653 divided by 7= 93 2/7
456 divided by 4=  114
2354 divided by 9= 261 5/9
3 0
3 years ago
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