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True [87]
3 years ago
9

What is the sum of the first 9th terms [S(9)]

Mathematics
1 answer:
nika2105 [10]3 years ago
6 0

Answer:

1(2n} = 9 \\1(2 \times 9 =

27

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How many moles of silver atoms are in 1.8 x 1020 atoms of silver?
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Answer:17g/mole or 1.67*10^18g/mole

Step-by-step explanation:

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3 years ago
Scott's gas tank is 1/3 full. After he buys 12 gallons of gas, it is 7/9 full. How many gallons can Scott's tank hold?
Bumek [7]

Answer: We start with the variable "x". Let's call "x" Dan's full tank.

So we know that right now he has 1/3x or 1/3 of a full tank.

After adding 12 gallons, at the end, he has 7/9x, or 7/9 of a full tank

So we start with

(1/3)x + 12 = 7/9x

Let's subtract 1/3x from both sides

12 = 7/9x - 1/3x

Remember, we need to use common denominators to subtract, so 1/3 becomes 3/9

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Now we simplify to get

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2 years ago
Robin had 40 apples to give to 3 groups of children.
wariber [46]

Answer:

23 apples

Step-by-step explanation:

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8 0
2 years ago
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3 years ago
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26 Points!!! Select True or False for each equation.
ArbitrLikvidat [17]

Answer:

The first one is true, meanwhile the second is false!

Step-by-step explanation:

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Hope it helps!

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3 years ago
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