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anzhelika [568]
3 years ago
13

What is the sum of 1+2+.....+50?​

Mathematics
1 answer:
Natasha_Volkova [10]3 years ago
7 0

Answer:

<u>sum</u><u> </u><u>is</u><u> </u><u>1</u><u>2</u><u>7</u><u>5</u>

Step-by-step explanation:

sum =  \frac{n}{2} [2a + (n - 1)d] \\  \\ sum =  \frac{50}{2} [(2 \times 1) + (50 - 1) \times 1] \\  \\ sum = 25(51) \\ sum = 1275

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Step-by-step explanation:

275 \times 5 = 1375

The rate of the motorboat on still water is 1375

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3 years ago
Convert 25% to a decimal
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The length of a garden can be expressed as 2X +6 feet and the width is X +7 feet what is the perimeter of the garden what is the
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Answer:

6x + 26 feet

Step-by-step explanation:

Assuming the garden is a rectangular shape, we have four sides, where two sides are 2x + 6 feet and two sides are x + 7 feet. To find the perimeter, we add up the lengths of all four sides.

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or

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2 years ago
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3 years ago
Which inequality has the solution set shown in the graph below?
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