All categories

3 years ago

( 8k + 9) - (6k + 5)

Mathematics

2 answers:

Katena32 [7]3 years ago

3 0

Answer:

The expression is 2k + 4.

Step-by-step explanation:

You have to collect like-terms :

(8k + 9) - (6k + 5)

= 8k + 9 - 6k - 5

= 2k + 4

HACTEHA [7]3 years ago

3 0

2k+4 is the answer to ur question

You might be interested in

Which is the best description of the equivalency of the two expressions? Expression 1 Expression 2 5 x squared minus 2 x minus 4

lina2011 [118]

Answer:

The correct option is (D).

Step-by-step explanation:

The two expressions are:

$\text{Exp}_{1}=5x^{2}-2x-4+6x+3\\\\\text{Exp}_{2}=6x^{2}-6x+6-x^{2}+10x-7$

On simplifying both the expressions we get:

$\text{Exp}_{1}=5x^{2}+4x-1\\\\\text{Exp}_{2}=5x^{2}+4x-1$

Compute the value of both expressions for x = 2 as follows:

$\text{Exp}_{1}=5(2)^{2}+4(2)-1=27\\\\\text{Exp}_{2}=5(2)^{2}+4(2)-1=27$

The value of both expressions are same for x = 2.

Thus, the correct option is:

"They are equivalent because when x = 2, the two expressions have the same value."

6 0

3 years ago

How many cups are in 3 gallons? 1 gallon = 16 cups Label your answer in cups.

matrenka [14]

Answer:

There are 48 cups in 3 gallons!

Hope this helped! :)

8 0

3 years ago

8 1/4 minus 5/6 equals what??

kondaur [170]

Ok to figure it out you first find the common factor, which is 12
so the fractions become 8 3/12 and 10/12 then you subtract those 2,
8 3/12-10/12 is 7 5/12.
Hope That Helps!!!

6 0

3 years ago

10x−y = 10 −2x+ 5y = −2

Viefleur [7K]

Answer:

x=1 & y=0

Step-by-step explanation:

5 0

1 year ago

How do you use the law of cosines or law of sines if you are given a=13 m, b=8.5 m, and c=9 m?

Rus_ich [418]

The law of cosines is
c= square root of a^2 + b^2 - 2ab cos c

the law of sines is
a = b(sin a /sin b)

3 0

3 years ago