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12345 [234]
3 years ago
8

Help please and explanation please

Mathematics
1 answer:
vazorg [7]3 years ago
4 0

For this case we must add the given series. We expanded the series for each of the values of i, that is, from 1 to 5:3 (1) +3 (2) +3 (3) +3 (4) +3 (5) =\\3 + 6 + 9 + 12 + 15 =

We add the terms:

9 + 9 + 12 + 15 =\\18 + 12 + 15 =\\30 + 15 =\\45

Finally, the value of the given series is 45.

Answer:

45

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Answer:

it

Step-by-step explanation:

i + t = it

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Stephanie is reading a 456-page book. During the past 7 days she has read 168 pages. If she continues reading at the same rate,
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Read 2 more answers
Allison works in a department store selling
harkovskaia [24]

Answer:

a. $395

b. $(350 + 0.15x)

Step-by-step explanation:

Her income in a week can be written as;

$350 + 15% of sales

a. In the case of $300 sales in a week

Mathematically, that would be;

$350 + 15% of $300

$350 + (15/100 * 300)

$350 + $45 = $395

b. In the case of $x in sales

= $350 + 15% of x

= $350 + (15/100 * x)

= $350 + 0.15x

= $(350 + 0.15x)

8 0
4 years ago
Can some please help me with this , it’s science
Nady [450]

Wind is air in motion.  Two factors are necessary to specify wind, speed and direction. It is produced by the uneven heating of the earth's surface by the sun. Since the earth's surface is made of various land and water formations, it absorbs the sun's radiation unevenly. Because of the way Earth rotates, solar light rays heat some parts of Earth's surface more than others. Air at hot spots rises and expands, leaving low pressure beneath it. Air at cold areas cools and falls, creating high pressure. When high-pressure air rushes into a low pressure area, that rush of air is wind.

7 0
3 years ago
Help plz.....................
bonufazy [111]

Answer:

A

Step-by-step explanation:

Remark

The trick here is convert what you have to Ax + By = C

Solution

<u><em>Given</em></u>

y - 3 = 1/2 ( x + 6)                        Multiply both sides by 2

<em><u>Solve</u></em>

  • 2(y - 3) = 2 * 1/2 (x + 6)               Do the multiplication
  • 2(y - 3) = x + 6                            Remove the brackets
  • 2y - 6 = x + 6                              Add 6 to both sides.
  • 2y - 6 + 6 = x + 6 + 6                  Combine
  • 2y = x + 12                                   Subtract x from both sides.
  • -x + 2y = x - x + 12                       Combine
  • -x + 2y = 12

Answer

  • A = - 1
  • B = 2
  • C = 12

or

  • When you multiply through by - 1 you get x - 2y = - 12 which is A
7 0
3 years ago
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