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3 years ago

6

Increase 50$ by 15% Can you say how to do it and answer?

1 answer:

cestrela7 [59]3 years ago

8 0

15% = 0.15
0.15 • 50 = 7.5
50 + 7.5 = 57.5

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What is the general term equation, an, for the arithmetic sequence 5, 1, −3, −7, . . . , and what is the 21st term of this seque

coldgirl [10]

The common difference, d, can be determined by subtracting the two consecutive values:

1 - 5 = -4
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Then, using the equation:

an = a1+ d(n-1)
a_21 = 5 + (-4)(21 - 1)
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The answer is letter D. I hope I was able to help you. Have a good day!

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3 years ago

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3 years ago

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goldenfox [79]

Answer:

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Step-by-step explanation:

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Lets assume distance covered one side be "d" and speed of boat in still water be "s".

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Also converting into fraction of time taken to reach back home.

Remember; 1 hour= 60 minutes

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⇒ $2s-\frac{4}{3} s-6= 4$

Adding both side by 6

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Multiplying both side by $\frac{3}{2}$

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4 years ago

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kobusy [5.1K]

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