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kramer
3 years ago
7

What does "n" equal in N+2n+20-4=12+3n?

Mathematics
1 answer:
stira [4]3 years ago
8 0
N+2n+20-4=12+3n
3n+20-4-12=12-12+3n
3n+4=3n
3n/3 + 4= 3n/3
n+4=n
n+4-4=n-4
n=n-4

theres no further simplification, unless i messed up ...
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3/10 divided by -1/3
Snezhnost [94]

Answer:

-9/10

Step-by-step explanation:

  1. Find the LCM of 10 and 3: 30
  2. Alter the numerators to fit the denominators: 3 × 3 = 9, -1 × 10 = -10
  3. Re-write the fractions: 9/30 ÷ -10/30
  4. 9/30 ÷ -10/30 = 9/30 × -30/10
  5. 9/30 × -30/10 = -270/300
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8 0
3 years ago
In the diagram below of parallelogram ABCD with diagonals AC and BD, m∠1=45° and m∠DCB=120°.Whatisthemeasureof∠2?
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Answer:

15degrees

Step-by-step explanation:

From the given diagram

<1+<2 + <DCB = 180

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<1+<2 = 180 - 120

<1+<2 = 60

<2 = 60 - <1

<2 = 60 - 45

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5 0
3 years ago
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Liono4ka [1.6K]

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