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ozzi
3 years ago
7

Can anyone help with this please? Janell randomly surveyed 50 students. She found out that 42 of the students had been to a musi

c concert. There are 2,870 students at the school. Based on her survey, about how many students in school have been to a music concert?
Mathematics
1 answer:
sweet [91]3 years ago
8 0

Answer:

2411

Step-by-step explanation:

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Solve the formula D=2a+b for a in general
My name is Ann [436]

Step-by-step explanation:

A = <u>d - b</u>

2

That's the answer

4 0
3 years ago
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What is the measure of B?
Nikolay [14]

Answer:

Hi there!

The answer to this question is: A. 55 degrees

Step-by-step explanation:

Using a the triangle angle sum theorem, you know all angles of triangle add up to 180.

In picture you are given two angles, 90 and 35

all you do is add them to get 125

then you subtract 125 from 180 to get 55

so in other words your final answer should be 55

3 0
4 years ago
Amy, Justin, and Henry sent a total of 70 text messages during the weekend. Justin sent 10 fewer messages than Amy. Henry sent 2
VashaNatasha [74]

Answer:

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explanation

I took justin and timed it by two then half of 20 is 10 then timed it by two again which 20*2 is 40

add it all together and you get 70

8 0
3 years ago
Plz help i do not understand the question.
gavmur [86]
The question is asking you to come up with a real-life example of something that can be represented as 15+ c= 17.50. If I were you I would do sales tax. You bought an item with a 15 dollar price tag, but when you go to check out 2.50 are added in tax to equal 17.50. to solve subtract 15 from 17.50: c= 2.50.  Your variable (c) represents the sales tax.  Hope that helps! :)
6 0
4 years ago
the perimeter of a triangle is represented by 3x² +8x-9. Two of its sides are represented by (x²+11x+5) and (-2x²-4x+2) What exp
Gala2k [10]

Answer:

The third side has a length of 4x² + x - 16

Step-by-step explanation:

We can solve this by taking the value given for the perimeter, and subtracting the values of the other two sides:

3x² + 8x - 9 - (x² + 11x + 5) - (-2x² - 4x + 2)

= 3x² + 8x - 9 - x² - 11x - 5 + 2x² + 4x - 2

= (3 - 1 + 2)x² + (8 - 11 + 4)x - (9 + 5 + 2)

= 4x² + x - 16

7 0
3 years ago
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