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gulaghasi [49]
4 years ago
12

Which expression is not equivalent to the other three?

Mathematics
2 answers:
Kitty [74]4 years ago
7 0
The right answer is B.

The first step to answering this question is combining all like terms.

A. 2x + 2 + 2x + 3x - 8
The like terms in this expression are the x terms and the constants
So, what you would do is combine all of the x terms and combine all of the constants

(2x + 2x +3x) + (2 - 8)
7x - 6

B. 4 + 7x - 2
In this expression, you would combine all of the constants

7x + (4 - 2)
7x + 2

C. -2 + 5x + 2x - 4
For this expression, you would again, combine all of the x terms and all of the constants.

-2 + 5x + 2x - 4
(5x + 2x) + (-2 - 4)
7x - 6

D. 8x - x - 6
For this expression, you would combine all of the x terms

8x - x - 6
(8x - x) - 6
7x - 6

Now let's look at all of the new answer choices:
A. 7x - 6
B. 7x + 2
C. 7x - 6
D. 7x - 6

The question is asking you to find the one expression that's different. The only different one is B, so that's the answer.
sammy [17]4 years ago
4 0

Answer:

the answer is B

Step-by-step explanation:

hope i am right

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A rectangular soccer field is 120 ft long by 64 ft wide. What dimensions would a scale drawing of the soccer field be if the fie
timofeeve [1]

Answer:

Hence dimension on drawing= 12 in by 6.4 in

Step-by-step explanation:

Actual dimension of the soccer field is 120 ft by 64 ft

Scale during drawing = 1in to 10 ft

Hence dimension on drawing = 120/10 by 64/10 = 12 in by 6.4 in

4 0
4 years ago
Oscar enjoys many different sports. Today, Oscar jogged for 6 minutes, rode his bike for 23 minutes, and played tennis for 49 mi
Mrrafil [7]

Answer: 78

Step-by-step explanation:

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3 0
2 years ago
12x-20y=108 3x+ky=27 what is k
Sedaia [141]

Let's look at the second equation and try multiplying it by 4:

4 * (3x + ky) = 4 * 27

Which gives us:

12x + 4ky = 108

This looks almost exactly like the first equation except that instead of -20y, there is 4ky. We could try making them equal to each other and solving for k:

-20y = 4ky

-20 = 4k

k = -5

Then, the answer is k = -5.

3 0
3 years ago
25 POINTS
mr Goodwill [35]
[ 1 ] Given
[ 2 ] Exterior Sides Opposite Rays
[ 3 ] Definition of Supplementary angles
[ 4 ] First substitution
[ 5 ] Subtraction Property of Equality
[ 6 ] Second Substitution
[ 7 ] If corrsp. equal, the lines ||
4 0
4 years ago
HELP ASAP ILL GIVE U 5 stars
jek_recluse [69]

Answer:

x = 1 . 14

Step-by-step explanation:

5x + 7 + 2x + 1

5x + 2x + 7 + 1

=   7x  + 8

= x = 8 / 7

x = 1.1 4

Hope this answer helps you :)

Have a great day

Mark brainliest

7 0
3 years ago
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