Sound level is measured in <u> decibels </u> (dB).
The equation 
, where 
is the intensity of the <u> threshold </u> sound a human can hear (
/
) and 
is the <u> intensity </u> of the sound being measured, gives the sound level, 
Example:
What was the intensity of the launch of NASA's Saturn V rocket, about 200 dB?
Answer:
x = 2
Step-by-step explanation:
½ = 50%
⅔ = 66.67%
80%
Hopefully, this helps! The numbers range from least (50%) to greatest (80%).
Tayler money ................... 320$
Estimated cost per chair....80$
Friend's chairs..................3
Total chairs..........> cc
cc = 320$/80$ +3
cc = 4 + 3 = 7 chairs
Answer:
QR = 54 cm
SR = 27 cm
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62 cm. plug in 4 for x. 2(5(4)-2))+2(3(4)+1))= 2(18)+2(13)= 36+26=62. Hope this helps!
