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Burka [1]
3 years ago
6

15n+24-4(n-3)+6-2n=105

Mathematics
2 answers:
Butoxors [25]3 years ago
8 0

Question: 15n+24-4(n-3)+6-2n=105

Answer:  3 • (3n + 14)

Explanation:

STEP 1: Restate

Equation at the end of step 1

 (15n + 24) -  4 • (n - 3)) +  6) -  2n

STEP 2: Pulling out like terms

STEP 3: Pull out like factors :

9n + 42  =   3 • (3n + 14)

Final result :

 3 • (3n + 14)

Hope this helps~

Studentka2010 [4]3 years ago
4 0

Answer:

n = 7

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

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I have a stamp collection. 70% of my stamps are Canadian and 30% are international. I have 500 more Canadian stamps than interna
shutvik [7]

Answer: N= 375, C= 875

Step-by-step explanation:  Let Canadian stamps=C

Let International stamps=N

C=875     and        N=375

 

C - 500=N,  .70(N + C) =C

Solve the following system:

{C-500 = N |     (equation 1)

0.7 (C+N) = C |     (equation 2)

Express the system in standard form:

{-N+C = 500 |     (equation 1)

0.7 N-0.3 C = 0 |     (equation 2)

Add 0.7 × (equation 1) to equation 2:

{-N+C = 500 |     (equation 1)

0 N+0.4 C = 350 |     (equation 2)

Divide equation 2 by 0.4:

{-N+C = 500 |     (equation 1)

0. N+C = 875. |     (equation 2)

Subtract equation 2 from equation 1:

{-N+0 C = -375. |     (equation 1)

0 N+C = 875. |     (equation 2)

Multiply equation 1 by -1:

{N+0 C = 375. |     (equation 1)

0 N+C = 875. |     (equation 2)

Collect results:

Answer: |  N = 375        and             C=875

3 0
3 years ago
PLEASE HELP THIS IS DUE IN 1 HOUR!! I CAN GIVE BRAINLIEST! ILL GIVE 20 POINTS TOO!
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Answer:

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106.85 - 88 = 18.85 ft (or 18.9 if rounding)

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Answer:

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so

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Answer:

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