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SVEN [57.7K]
3 years ago
7

Find the exact value of x

Mathematics
1 answer:
Ket [755]3 years ago
3 0
<span>What does lol, idk, and ttyl mean? I am serious Answer me and I will answer you
:D please

</span>
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Step-by-step explanation:

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kari74 [83]
10, 14, 18 ....

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\bf \textit{ sum of a finite arithmetic sequence}&#10;\\\\&#10;S_n=\cfrac{n(a_1+a_n)}{2}\qquad &#10;\begin{cases}&#10;n=n^{th}\ term\\&#10;a_1=\textit{first term's value}\\&#10;----------\\&#10;a_1=10\\&#10;a_{17}=74\\&#10;n=17&#10;\end{cases}&#10;\\\\\\&#10;S_{17}=\cfrac{17(10+74)}{2}\implies S_{17}=\cfrac{17(84)}{2}\implies S_{17}=714
6 0
3 years ago
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The price of an electronic puzzle was reduced be $7
Nimfa-mama [501]

Answer:

Step-by-step explanation:

total price was reduced by $ 7

let x = the total price........ x - 7

he bought 10.....and it cost him $ 130

10(x - 7) = 130

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7 0
3 years ago
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Mkey [24]

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Step-by-step explanation:

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7 0
3 years ago
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Hello i am having trouble and i would love some one to help me
myrzilka [38]

Answer:

Your answer is 7.5 loaves were baked that morning.

Step-by-step explanation:

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Hope this helps!

Let me know if you still don't understand!



~Courtney

6 0
3 years ago
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