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IceJOKER [234]
3 years ago
12

Solve -5(2n+7)=3n+9-2n

Mathematics
2 answers:
xxMikexx [17]3 years ago
8 0

Answer:

n = -4

Step-by-step explanation:

- 5 (2n + 7) = 3n + 9 - 2n

- 10n - 35 = 3n + 9 - 2n

- 10n - 3n + 2n = 9 + 35

- 11n = 44

- n = 44/11

- n = 4

n = - 4

just olya [345]3 years ago
5 0

Answer:

n=-4

Step-by-step explanation:

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Step-by-step explanation:

4 0
3 years ago
Determine the fraction of total interest owed using the rule of 78. After the six month of a 12 month loan, the numerator is: {(
Dima020 [189]

Answer:

The fraction of total interest owed is  \frac{57}{78}

The value of it to the nearest tenth is 73.1%

Step-by-step explanation:

Let us solve it using the rule of 78

∵ The loan = 12 month

∵ The numerator is after 6 month

- Substitute n by 1 in each bracket

∴ The numerator = {(1 + 11) + (1 + 10) + (1 + 9) + (1 + 8) + (1 + 7) + (1 + 6)}

∴ The numerator = {12 + 11 + 10 + 9 + 8 + 7}

∴ The numerator = {57}

∴ The numerator of the fraction is 57

∵ The denominator = {(n) + (n + 1) + (n + 2) + .......... + (n + 11)}

- substitute n by 1 in each bracket

∴ The denominator = {1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12}

∴ The denominator = {78}

∴ The denominator of the fraction is 78

The fraction of total interest owed is  \frac{57}{78}

Now find the value of the fraction

∵ The fraction = \frac{57}{78}

∴ Its value = 0.7307692308 × 100%

∴ Its value = 73.07692308%

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The value of it to the nearest tenth is 73.1%

5 0
3 years ago
Heller Co. incurred the following costs in 2005:
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D

Step-by-step explanation:

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Testing for evaluation of new products can be considered since these new products are results from the research and development done by Heller Co.

3 0
3 years ago
2. Karen has 445 stickers in her collection. There are 221 animal stickers and 174 cartoon stickers. She also has some flower st
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Answer:

c

Step-by-step explanation:

6 0
3 years ago
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