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mash [69]
4 years ago
8

The formula to find a certain number in an arithmetic sequence is an=a1+d(n−1) .

Mathematics
1 answer:
OleMash [197]4 years ago
4 0

an = a1 + d(n−1)

an = a1 + dn - d

dn = an - a1 + d

 n = (an - a1 + d) / d

 n = (an - a1)/d + 1

Answer is B.

 n = (an - a1)/d + 1


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Step-by-step explanation:

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How do you solve 1 - r = -5. Please Explain!!
Gemiola [76]
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Rays that share a common endpoint but continues infinitely in opposite directions is called___________.
sleet_krkn [62]

Answer:

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Step-by-step explanation:

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4 years ago
How to do distributive property using word problems?
Marta_Voda [28]
Well, I have an example that might help:

Rico's MP3 player holds songs of three different genres: grindcore, zydeco, and kuduro. There are <span>55</span> times as many grindcore tracks as there are zydeco tracks, and there are <span>77</span> times as many kuduro tracks as there are zydeco tracks. Let <span>xx</span> represent the number of zydeco tracks. Write an expression for the total number of tracks on the MP3 player, and simplify it.

Multiply the number of zydeco tracks by <span>55</span> to get the number of grindcore tracks.

<span><span>5x</span><span>5x</span></span>

Multiply the number of zydeco tracks by <span>77</span> to get the number of kuduro tracks.

<span><span>7x</span><span>7x</span></span>

Add up the numbers of all the tracks.

<span><span>x+5x+7x</span><span>x+5x+7x</span></span>

Simplify using the distributive property.

<span><span><span>=(1+5+7)x</span><span>=13x</span></span><span><span>=(1+5+7)x</span><span>=13x</span></span></span>

So, Rico's MP3 player holds <span><span>13x</span><span>13x</span></span> tracks.


I hope I helped you!


5 0
3 years ago
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