Answer:
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Answer:
Let's solve for x.
−2(x+3y)=18
Step 1: Add 6y to both sides.
−2x−6y+6y=18+6y
−2x=6y+18
Step 2: Divide both sides by -2.
−2x/−2
=
6y+18
−2
x=−3y−9
Answer:
−3y−9
You can treat it as an arithmetic sequence, so multiply the average integer value by the number of integers:
(40+12)/2 × (40 -12 +1) = 26×29 =
754You can subtract the sum of integers 1–11 (66) from the sum of integers 1–40 (820) to get the sum of integers from 12–40: 820 - 66 =
754.
You can let a graphing calculator do it. (See attached.) This method takes perhaps the least amount of thought. It, too, gets a sum of
754.
Answer:
8.062257748
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Answer:
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Step-by-step explanation: