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wolverine [178]
3 years ago
5

The sum of twice a number and right is equal to negative eighteen .find the number

Mathematics
2 answers:
Reil [10]3 years ago
8 0

Answer:

-13

Step-by-step explanation:

2n+8= -18

    -8    -8

     2n= -26

      /2     /2

           = -13

zavuch27 [327]3 years ago
5 0

Answer:

Step-by-step explanation:

-36

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Answer:

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Step-by-step explanation:

Given,

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The sum of principal and interest is called an amount.

From the definition,

\boxed{ \sf{Amount =  \: Principal + Interest}}

plug the values

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Move 6000 to right hand side and change its sign

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⇒\sf{Interest = \: 8550 \: }

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<u>Finding </u><u>the </u><u>rate </u>

{ \boxed{ \sf{Rate =  \frac{Interest \times 100}{Principal \times Time}}}}

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⇒\sf{ Rate = \frac{8550  \times 100}{6000 \times 10} }

Calculate

⇒\sf{Rate =  \frac{855000}{60000} }

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Hope I helped!

Best regards!!

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