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Lesechka [4]
3 years ago
11

What is the median number of hours volunteered by the students in

Mathematics
2 answers:
Anna11 [10]3 years ago
6 0

Answer:

40

Step-by-step explanation:

The sum equals 80 80/2=40

kogti [31]3 years ago
4 0

Answer:

3

Step-by-step explanation: If you write out all the numbers and you cross them out in order you will find that 3 is your median.

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Does xy-11=5 show direct variation
mash [69]
X=6/y would be your answer kind sir

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3 years ago
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vampirchik [111]
I don’t even know sorry
7 0
3 years ago
NEED HELP DUE AT 11:25
Alja [10]

Answer:

w=p/2-l

Step-by-step explanation:

you have to simplify the equation p=2(l+w).

1) Isolate the variables l and q

p/2=l+w

2) Subtract the length from the width.

p/2-l=w

3) The answer is b, or w=p/2-l

8 0
3 years ago
Allan writes down n positive integers so that the sum of those numbers is 23. When he multiples those numbers, he gets the maxim
Inga [223]

Answer:

  • 3, 3, 3, 3, 3, 3, 3, 2

Step-by-step explanation:

To get maximum product we need to optimize how we break down the numbers

Its obvious we don't want number 1 to be used as it won't change the product

Also we don't want to use big numbers, we can have four 5's instead of two 10's as it would give greater product, 5*5 > 10

<u>What is best number?</u>

  • 2 and 3 are the smallest, 4 can be written as two 2's
  • 5 = 2+ 3 and 2*3 = 6, so it is better to use 2's and 3's instead of 5
  • 6 = 2+2+2, 2^3 = 8 and 6 = 3+ 3, 3^2 = 9, so it is better to use two 3's for 6
  • 7 = 2+2+3, 2*2*3= 12, again 2's and 3's make greater product

<u>So the best is to break the number down to 2's and 3's</u>

  • 23 = 2*10 + 3 ⇒ 2^10*3 = 3072
  • 23 = 3*7 + 2 ⇒ 3^7*2 = 4374

As we see the maximum product we can get is 4374 with seven 3's and one 2.

<u>Hence the numbers are:</u>

  • 3, 3, 3, 3, 3, 3, 3, 2

8 0
3 years ago
Read 2 more answers
Find the LCM (least common multiple) of (5x-9) and (3x+ 8)
Aloiza [94]
In order  to get the LCM of two binomial expressions (5x - 9) and (3x + 8), you need  to factor first each binomial if factorable.

In this given binomial expression (5x - 9) and (3x + 8), you do not need to factor both because they are not factorable.

Next thing to do is to multiply the two binomial expressions by using FOIL method.
     (5x - 9)(3x + 8) = 15x^2 + 40x - 27x - 72 = 15x^2 + 13x - 72

Therefore, the LCM of (5x - 9) and (3x + 8) is 15x^2 + 13x- 72.
5 0
3 years ago
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