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svetlana [45]
2 years ago
11

Which statement is true?

Mathematics
2 answers:
Taya2010 [7]2 years ago
7 0

Answer:

The sum of 78 and -78 is zero.

Step-by-step explanation:

I used a calculator ;)

Travka [436]2 years ago
7 0

Answer:

The sum of 78 and -78 is zero. But also.. If you use a number line, & start at 78 and you subtract -78, you will move 78 to the left. Leaving you at zero.

Step-by-step explanation:

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What is the 32nd term of 311, 305, 299
nata0808 [166]

Answer:

503

Step-by-step explanation:

For an arithmetic sequence, the n-th term is found by

a_n = a_1 + (n - 1)d

To find d (the common difference) we can simply subtract one of the terms by the last, for example:

d = 299 - 305 \\d = -6 \\

The common difference must be the same throughout the entire sequence, so we can do it once more just to be sure:

d = 305 - 311\\d = -6

We also have to know that a_1 stands for the first term of the sequence, which in this case is 311.

Now that we know this, let's find the 32nd term

a_{32} = 311 + (32 - 1)-6\\a_{32} = 311 + 192\\a_{32} = 503

Good luck!

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2 years ago
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Answer:

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Sidana [21]

Step-by-step explanation:

If were estimating, 39 is pretty close to 40 and 40x6 is 240 pounds. if we are getting exact about it, then 234 pounds

5 0
2 years ago
What kind of word problem can be solved with a two-variable equation?​
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Answer: Here’s one I made up! Combined, Megan and Kelly worked 60 hours, Kelley worked twice as many hours as Megan. How many hours did they each work? Hope this helps!

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Step-by-step explanation:

3^2 + 3^2 =5^2

9 +9 =25

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False 18 is not equal to 25.

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