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He should survey the people who most often attend the game
Total amount of instrument players= 300
Number of brass instrument players= x (because we do not know how many there are, except that all other values that we must calculate are based off of the number of brass players we have
Number of string instruments= 3x (because 3 times more than the number of brass instruments
Number of Percussion= x-60 (because there are 60 less percussion players than brass players
So, our equation is (number of string instruments)+(number of brass instruments)+(number of percussion instruments)=300 (which is our total possible number of people
3x+x+x-60=300
3x+x+x=360
5x=360
x= 72
We have 72 brass instrument players, 3(72)= 216 string instrument players, and 72-60=12 percussion players
check: 72+216+12=300
Divide the number of defective by the number checked:
26/190 = 0.1368
Multiply that by 1000:
0.1368 x 1000 = 136.8
Round up to 137
Out of 1000 cd’s 137 would be defective
Answer:
I'm not helping yall learn on ya own .
Step-by-step explanation:
