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olga55 [171]
3 years ago
11

There are 1200 students at silver lake middle school 700 Are eighth graders what percent of the students are in the eighth grade

round to the nearest 10th of a percent
Mathematics
1 answer:
Leni [432]3 years ago
7 0
(700/1200)*100 = 58.33%, rounding to the nearest 10th of à percent we get 60%
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Step-by-step explanation:

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2 years ago
2^x-1=128<br><br><br> show work pls! thank u :)
hichkok12 [17]

Hello from MrBillDoesMath!

Answer:

Take you pick below!   (either x 8 or x = 7.01, approx, depending how the question is interpreted)




Discussion:

Interpretation 1

If the question is   2^(x -1)  = 128, then as 2^7 = 128,

x-1 = 7 so x = 8



Interpretation 2

If the question is (2^x -1) = 128, then..

2^x  = 128 + 1 = 129  =>

log(2^x) = log(129) =>

xlog(2) = log(129) =>

x = log (129) / log2 = 7.01

Regards,  

MrB

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