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hoa [83]
2 years ago
14

Is the expression 3 (xx+1 1/2)- 3 equivalent to 3x+ 1 1/2?

Mathematics
2 answers:
madreJ [45]2 years ago
5 0
Yes it is ! The answer
Nady [450]2 years ago
4 0

Answer:

yes

Step-by-step explanation:

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3 years ago
Emily added 5 grams of water into 20 grams of 50% salt solution.
atroni [7]
Answers:
She made ___25___ grams of ___40___% salt solution

------------------------------------------------------------------

The given info "20 grams of 50% salt solution" tells us that we have 10 grams of pure salt
Since 50% of 20 = 0.50*20 = 10
Put another way, we have 10 grams of pure salt out of 20 total so 10/20 = 0.50 = 50% salt solution

The 20 grams of solution updates to 25 grams of solution when we add the 5 grams of water
We don't add any salt, assuming this water is fresh water

So we still have 10 grams of pure salt out of 25 grams now
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3 years ago
Leslie paid $12 for 4 books. What is the unit rate of the book purchase?
Setler79 [48]

Answer: 3 dollars for a book.

Step-by-step explanation:

7 0
3 years ago
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Given EG = 16 and FH = 12, what is the length of one side
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3 years ago
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WE GIVE 11 POINTS AND BRAINIEST URGENT HELP
Alina [70]

Answer:

1.  Find < ACB

2. Use that triangles =180 to find <B  = 41

Step-by-step explanation:

1.We need to find < ACB

<ACB +<DBC= 180 They make a straight line

Subtract DBC from each side

<ACB = 180 - <DBC  

We know DCB = 113

ACB = 180 -113

ACB = 67

2.The three angles of a triangle = 180, so we can then find <B

<A +<B + <ACB = 180

72 + B + 67 = 180

Combine like terms

139+ <B = 180

Subtract 139 from each side

<B = 180-139

<B =41

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3 years ago
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