A) write a relation for perimeter of a square with side length n centimetres

Answers

Answer 1
Answer: The perimeter of a square is equal to the side length times 4.

The equation is P = 4S, with P being the perimeter, and S being a side. 

Also, to get the length of a side from the perimeter, just divide the perimeter by 4.

To have it in centimeters, just add cm to the end of your answer!

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Solve for y -2(x + 3 y) =18

Answers

Answer:

y= -3y - 1/3x

Step-by-step explanation:

-2(x + 3y) = 18 Distribute the -2 to the x + 3y

-2x - 6y = 18

+2x          +2x    Add the 2x to both sides

-6y = 18 + 2x   Divide both sides by -6

y= -3y - 1/3x

What is the value of 3 in 3,538

Answers


Well, one of them represents 3,000
and the other one represents 30 .
You haven't told us which one
you're interested in.

Try and answer this one!

Answers

Answer:

128

Step-by-step ex

The question
Najheheggebbsbv nhsygenbs

Answers

Answer: 1.) √121= 11

Step-by-step explanation:

11•11=121

A number increased by 4 is the same as 19 minus 2 times the number

Answers

Here :

x+4=19-2x
x+2x=19-4
3x=15/3
x=5
So it says A NUMBER We don't know what number SO we are gonna add any variable you want.
LET SAYS m = NUMBER INCREASED
is means equal
m+4= 19-2m

m+2m=19-4
3m=19-4
3m=15
3÷3m=15÷3                  3and 3 cancel each other and 15÷3 is 5
m=5
Answer is 5


What's the difference of 3/4 and 1/28

Answers

Find the  LCD 4 and 28 :

Factor each denominator into its primes :

4 = 2²
28 = 2² * 7

Find the least common denominator 2² * 7 = 28

LCD = 28

(3)/(4) - (1)/(28)

Adjust fractions based on the LCD :

(3*7)/(28) - (1)/(28)

(3*7-1)/(28)

= (20)/(28)

Cancel common  factor 4 :

(20/4)/(28/4)

= (5)/(7)

hope this helps!