3 years ago

How do you find the sum of the first 20 terms of sequence

1 answer:

8 0

The formula to find the sum of the first n terms of our sequence is n divided by 2 times the sum of twice the beginning term, a, and the product of d, the common difference, and n minus 1. The n stands for the number of terms we are adding together.

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Markups The depth of water in a pond increases by 3% after a heavy rain. If the average depth of the water was 8.3 feet, what is

jek_recluse [69]

Answer: 8.55 feet

Step-by-step explanation:

We should equal the average depth to 1, so if it raises 3%, it raises 0.03. Simply add the original (1) plus what it rose (0.03) and multiply the original by that, so 8.3 × 1.03 = new depth. The result is 8.549 feets.

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3 years ago

Alayna worked 44 hours last week. Her hourly rate is $9.00. Alayna’s gross pay for last week was $

Leni [432]

Answer:

$396

Step-by-step explanation:

Alayna's hourly rate (or pay per hour) is $9.

She worked 44 hours in total last week. To solve, multiply 44 with 9

44 x 9 = $396

Alayna's gross pay for last week was $396.

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