All categories

3 years ago

Nonsense=report Need help pls

Mathematics

1 answer:

Studentka2010 [4]3 years ago

7 0

1. x - 8= 47

47 + 8 = 55

55 = x

2. 7x = 28

28 divided by 7 = 4

x = 4

3. 6x - 5 = 31

31 + 5 = 36

36 divided by 6 = 6

x = 6

4. x + 4 = 12

12 - 4 = 8

x = 8

You might be interested in

Brainliest if right!!!!

slega [8]

Answer:

Each side is 3/4 yard, and the shape is a square. This means that you will need to multiply 3/4 by 3/4.

3/4 x 3/4

(3 x 3) + (4 x 4)

19/16sqyd

5 0

3 years ago

Read 2 more answers

Find the 9th term geometric sequence 1,1/2,1/2^2

valentinak56 [21]

Answer: $t_9=\dfrac{1}{2^8}$

<u>Step-by-step explanation:</u>

$t_n=t_1\times r^{n-1}\\\\Given: t_1=1,\quad r=\dfrac{1}{2}\\\\\\t_9=1\times\bigg(\dfrac{1}{2}\bigg)^{9-1}\\\\\\.\quad =\large\boxed{\dfrac{1}{2^8}}$

3 0

4 years ago

How do you refer 2ml of blue and 6ml of green in batches

lisabon 2012 [21]

Answer:

8ml

Step-by-step explanation:

6 0

3 years ago

What is the ratio for the surface areas of the cones shown below, given that

andreyandreev [35.5K]

Answer:

The ratio for the surface areas is equal to 4

Step-by-step explanation:

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

Let

z -----> the scale factor

In this problem

The scale factor is equal to

$z=\frac{2}{1}$ ----> the ratio of its corresponding radii or its corresponding altitudes

step 2

Find the ratio for the surface areas of the cones

we know that

If two figures are similar, then the ratio of its surface areas is equal to the scale factor squared

Let

z -----> the scale factor

x ----> the surface area of the larger cone

y ----> the surface area of the smaller cone

$z^{2} =\frac{x}{y}$

we have

$z=\frac{2}{1}$

substitute

$(\frac{2}{1})^{2}=\frac{x}{y}$

$4=\frac{x}{y}$

The ratio for the surface areas is equal to 4

That means-----> The surface area of the larger cone is 4 times the surface area of the smaller cone

5 0

3 years ago

Find the approximate length of the diagonal of the rectangle.

nevsk [136]

Answer:

Option A. $4.3\ cm$

Step-by-step explanation:

we know that

To find the diagonal of the rectangle apply the Pythagoras Theorem

Let

D-----> the diagonal of rectangle

L----> the length of rectangle

W---> the width of rectangle

$D^{2}=L^{2}+W^{2}$

substitute the values

$D^{2}=3.6^{2}+2.4^{2}$

$D^{2}=18.72$

$D=4.3\ cm$

6 0

3 years ago