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Alona [7]
3 years ago
15

2.8 -3x =12.1 −6x what's x

Mathematics
2 answers:
Kipish [7]3 years ago
6 0
X= 3.1 is the answer
hodyreva [135]3 years ago
4 0
The answer is X=3.1!
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PPPLLLZZZ HELP I'LL GIVE BRAINLIEST
kati45 [8]

Allen's work is not written properly so I have rearranged it as shown below:


Original problem) –8.3 + 9.2 – 4.4 + 3.7.

Step 1) −8.3 + 9.2 + 4.4 + 3.7 Additive inverse

Step 2) −8.3 + 4.4 + 9.2 + 3.7 Commutative property

Step 3) −8.3 + (4.4 + 9.2 + 3.7) Associative property

Step 4) −8.3 + 17.3


We can see that in step 1), Allen changed -4.4 into +4.4 using additive inverse. Notice that we are simplifying not eliminating -4.4 as we do in solving some equation. Hence using additive inverse is the wrong step.


Alen should have collect negative numbers together and positive numbers together.

Add the respective numbers then proceed to get the answer.


–8.3 + 9.2 – 4.4 + 3.7

= –8.3 – 4.4 + 9.2 + 3.7

= -12.7 + 12.9

= 0.2



6 0
3 years ago
Read 2 more answers
three and four angles below form a triangle which of the angles to do not belong 35 degrees 115 degrees 50 degrees 30 degrees ​
aleksandrvk [35]
50 degrees doesn’t belong because

35 + 115 + 30 = 180 degrees

Hope this helped :)
7 0
3 years ago
The first 5 multiples of 18 after 0 are?​
ololo11 [35]

Answer:

18,36,54,72,90 are first five multiples of 18

Step-by-step explanation:

4 0
3 years ago
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Help me out please!!!!!!!
SashulF [63]
This is a rule for right triangle pythagorean triples, so it is B
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3 years ago
The current value of a baseball card is 60 times its original value v
jeka94
60v = $15

60v/60 = $15/60

v = 0.25

The original value of the baseball card is $0.25
5 0
3 years ago
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