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3 years ago

Plz explain.

Mathematics

1 answer:

slega [8]3 years ago

8 0

Idk, why does the world need problems like this, not like everyone is going to grow up to be a math teacher.

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WILL GIVE BRAINLEST FOR CORRECT ANSWERS. PLZ HELP ME

taurus [48]

Answer:

D slope in relationship is 3

slope=2

equation y=2x

B y=2.5x

y-intercept is (0,2)

Step-by-step explanation:

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EL PERIMETRO DELCUADRADO X ES DOS TERCIOS DEL PERIMETRO DEL CUADRADO Y. EL UCADRADO Y ES DOS TERCIOS DEL PERIMETRO DEL CUADRADO

Keith_Richards [23]

the question in English is

THE SQUARE PERIMETER X IS TWO THIRDS OF THE SQUARE PERIMETER Y. THE PERIMETER OF THE SQUARE Y IS TWO THIRDS OF THE PERIMETER OF THE SQUARE Z. THE AREA OF THE SQUARE X IS 16 CM2 WHAT IS THE AREA OF THE SQUARE Z?

Let

Px--------> the perimeter of square x

Py--------> the perimeter of square y

Pz--------> the perimeter of square z

Ax--------> the area of square x

Az--------> the area of square z

Step 1

Find the length side of the square x

we know that

$Px=\frac{2}{3} Py$ -------> equation A

$Py=\frac{2}{3} Pz$ -------> equation B

$Ax=16\ cm^{2}$

$Ax=x^{2}$

$x^{2}=16$

$x=4\ cm$

Step 2

Find the perimeter of square x

$Px=4x$

substitute the value of x in the formula

$Px=4*4=16\ cm$

Step 3

Find the perimeter of square y

use the equation A

$Px=\frac{2}{3} Py$

solve for Py

$Py=\frac{3}{2} Px$

substitute the value of Px

$Py=\frac{3}{2}16=24\ cm$

Step 4

Find the perimeter of square z

use the equation B

$Py=\frac{2}{3} Pz$

solve for Pz

$Pz=\frac{3}{2} Py$

substitute the value of Py

$Pz=\frac{3}{2} 24=36\ cm$

Step 5

Find the area of square z

we know that

the area of the square z is equal to

$Az=z^{2}$

Find the length side of square z

$Pz=4z$

$Pz=36\ cm$

$4z=36$

$z=9\ cm$

substitute the value of z in the area's formula

$Az=9^{2}=81\ cm^{2}$

therefore

the answer is

the area of the square z is $81\ cm^{2}$

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3 years ago

GenaCL600 [577]

Answer:

Step-by-step explanation:

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3 years ago

The sum of two numbers is five more than twice the first. The sum of the number is 45. Find the numbers

gulaghasi [49]

Answer:

First number is 20, second is 25

Step-by-step explanation:

x + y = 5 + 2x = 45

solve for x first

5 + 2x = 45

x = 20

then solve for y

20 + y = 45

y = 25

hope this helps

3 0

3 years ago