3 years ago

Explain why the following statements are equivalent: x + (y + 9) = (x + y) + 9

Mathematics

2 answers:

Aleks [24]3 years ago

8 0

Answer:get into it

Step-by-Stefan:

Alona [7]3 years ago

5 0

Answer:

There are no like terms hence they stay the same

Step-by-step explanation:

x + (y + 9)

There are no like terms

=x+y+9

(x + y) + 9

There are no like terms

=x+y+9

You might be interested in

What to say back if someone says that you’re skinny

MissTica

Answer:

ok and?

Step-by-step explanation:

6 0

3 years ago

Ahmad lost 50 dollars from his pocket.<br><br>Write a signed number to represent this change.

IRINA_888 [86]

Answer:

-50

Step-by-step explanation:

it could be X-50=?

8 0

3 years ago

Lauren went to the store an bougth a red hat for $32 and a black hat for $8 how many times as much did the red hat cost as the b

Firlakuza [10]

Answer:

I think 4

Step-by-step explanation:

Red hat costs $32

black hat costs $8

32 (divided) by 8 is 4

3 0

3 years ago

Read 2 more answers

What is the volume of a right circular cylinder with a base diameter of 6 m and a height of 5 m?

lys-0071 [83]

If the diameter of it is 6, then its radius is half that.

$\bf \textit{volume of a right circular cylinder}\\\\
V=\pi r^2 h~~
\begin{cases}
r=radius\\
h=height\\
-----\\
r=3\\
h=5
\end{cases}\implies V=(\pi )(3^2)(5)$

6 0

4 years ago

Read 2 more answers

What is the value of x? (see picture)

Ivanshal [37]

Answer:

37º

Step-by-step explanation:

∠ABC (Interior) = 360º - 5x

Sum of interior angles in a polygon is (n - 2) x 180

Sum of interior angles of ABCD = (4 - 2) x 180 = 360º

79 + 2x + (360 - 5x) + 32 = 360

79 + 2x + 360 - 5x + 32 = 360

471 - 3x = 360

3x = 111

x = 37º

5 0

3 years ago

Read 2 more answers