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lutik1710 [3]
3 years ago
13

Find the sum of the first20 odd numbers.​

Mathematics
2 answers:
konstantin123 [22]3 years ago
7 0

Answer:

Hi there.....

Step-by-step explanation:

This is ur answer......

1, 3, 5, 7, 9, 11, 13, 15.................39

Therefore the total sum = 400

hope it helps you,

mark me as the brainliest....

Follow me......

geniusboy [140]3 years ago
3 0

Answer:

400

Step-by-step explanation:

These are the first 20 odd numbers

1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23 + 25 + 27 + 29 + 31 + 33 + 35 + 37 + 39

Put them in a calculator and you get: 400

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3 years ago
When four times a number is decreased by 9, the result is 19. What is the number?
Novay_Z [31]

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8 0
2 years ago
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AlekseyPX

Answer:

a.) Selecting two red balls (because there are more red balls than white)

OR

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4 0
3 years ago
Which is another way to check the sum of 52 + 23 + 10 + 78
BaLLatris [955]
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6 0
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The lines below are perpendicular. If the slope of the green lines in 3/2, what is the slope of the red line
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