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erma4kov [3.2K]
3 years ago
7

Anyone know how to do 3 or 4???

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
3 0
There are 13 students in Sara's class. I did this by using 8 = 3/5x, x being the total number of students. The answer is 13.33334 but you cant have half a student so it rounds down to 13.
also number 4 can be any positive number. This is because if you take one fourth of a negative number it will be more than if you doubled it. for example 1/4 of -4 is -1 which is more than -4 doubled which is -8
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The width of a rectangle measures (3v-3w) centimeters, and its length measures (5v-9w) centimeters. Which expression represents
Alex17521 [72]

Answer: The Perimeter of the rectangle, P= 16v −24w

Step-by-step explanation:

Perimeter of a rectangle  = 2( L +W) =   2L + 2W

The width of a rectangle is given as  (3v-3w) centimeters,

its length is given as (5v-9w) centimetres

The Perimeter,P will now be  = 2L + 2W

P=2( 3v-3w) + 2( 5v-9w)

P=6v  −6w + 10v  - 18 w

 adding like terms

P=6v + 10v  −6w −18 w

P= 16v −24w

3 0
3 years ago
<img src="https://tex.z-dn.net/?f=%20%28%203%20-%20%28%20-%204%20%7Bx%7D%29%5E%7B2%7D%20" id="TexFormula1" title=" ( 3 - ( - 4 {
Alja [10]
The answer to the question

3 0
3 years ago
What is the answer to this equation? 2(9+x) = -5(4-x)
photoshop1234 [79]

Answer:

Hi!

Alrighty here we go:

2(9+x)=-5(4-x)

18+2x=-20+5x

Now combine like terms

+20+18+2x=-20+20+5x

38+2x=5x

38+2x-2x=5x-2x

38=3x

x= 38/3

Hope this helped!

8 0
3 years ago
What property comes first in 2(x+4)=6
Reil [10]

Answer:the (c+4)

Step-by-step explanation:

That becomes before anything

8 0
3 years ago
Read 2 more answers
If g( n ) = 3 n - 2, then what is the value of g(10)?
Paul [167]
The correct answer is 28
6 0
3 years ago
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