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Zina [86]
3 years ago
5

Efectuati! (-1)+2+(-3)+4+(-5)+...+(-19)+20 Ajutati-ma, va rog!

Mathematics
1 answer:
alexira [117]3 years ago
8 0

Answer:10

Step-by-step explanation:

2+4+6+.....+20- (1+3+5+7+...+19)=(2-1)+(4-3)+(6-5)+....+(20-19)=1+1+...+1 ( de 10  ori= 10 times)

=10

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4. Simplify the expression. (6 points)
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Read 2 more answers
Math 1 and Math 2 HOHUIS
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Answer:

15

Step-by-step explanation:

Simplify the following:

5 + 5×2

5×2 = 10:

5 + 10

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4 0
4 years ago
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BlackZzzverrR [31]

Answer:

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Step-by-step explanation:

first you subtract 7 from 7 and 12

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then you get 19 \leq v

(btw the variable always goes first with these problems)

so the final answer would be v \geq 12

3 0
3 years ago
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