All categories

3 years ago

Please help. solve for the variable

Mathematics

1 answer:

Elanso [62]3 years ago

4 0

Answer:

Step-by-step explanation:

12. 6(5n-3)=36n

-divide each side by six: 5n-3=6n

-subtract 5n from 6n: n= -3

14. 5b+8/3=3b

-multiply each side by 3: 5b+8=9b

-subtract 5b from 9b: 8=4b

-divide each side by 4: b=2

16. 3r+4-8r=4r-12

-subtract 3r-8r= 5r: 5r+4=4r-12

-Subtract 4r from 5r, then subtract 4 from 12

r = -16

You might be interested in

Someone help please

STALIN [3.7K]

Answer:

OK with what

Step-by-step explanation:

OK with what

8 0

3 years ago

Read 2 more answers

Factorise the following expressions.

Setler79 [48]

Answer:

Q.1 a²+10a+24

splitting the middle.

a²+6a+4a+24

=a(a+6)+4(a+6)

(a+6)(a+4)

Q.2 x²+9x+18

splitting the middle

x²+6x+3x+18

x(x+6)+3(x+6)

(x+6)(x+3)

3 0

3 years ago

PLEASE HELP! EASY MATH! GIVING BRAINLIEST!

grin007 [14]

Part 1) The surface that is shared by the two solids is the top of the cube that is the same that the square base of the pyramid

Part 2) The dimensions of this surface are 6 in x 6 in

Part 3) Molly needs to paint 228 square inches

Step-by-step explanation:

The picture of the question in the attached figure

Part 1) Which surface is shared by the two solids?

we know that

The surface that is shared by the two solids is the top of the cube that is the same that the square base of the pyramid

Part 2) What are the dimensions of this surface?

The surface is a square with side length 6 inches

The dimensions of this surface are 6 in x 6 in

Part 3) what is the area molly needs to paint?

we know that

The area that Molly needs to paint is equal to the surface area of the cube plus the surface area of the pyramid minus two times the area of the surface that is shared by the two solids

therefore

Molly needs to paint 228 square inches

<em>i hope this helps you</em>

6 0

3 years ago

Plzz help me with the correct ans find x

Tresset [83]

Answer:

Step-by-step explanation:

Since, triangle ABC is the enlargement of triangle XYZ.

$\therefore \triangle ABC \sim \triangle XYZ$

So, corresponding sides of both the triangles would be in proportion.

$\therefore \frac{x}{6}=\frac{25}{10}$

$\therefore x= \frac{6\times 25}{10}$

$\therefore x =\frac{150}{10}$

$\therefore x = 15$

3 0

3 years ago

Read 2 more answers

The expression on the left side of an equation is shown below.

Katyanochek1 [597]

Answer:its c i think

Step-by-step explanation:

7 0

3 years ago