SOLUTION: The teacher noticed that 0.68 of the 11th graders wore bluejeans. If 256 did not wear blue jeans, how many 11th grade students were there altogether? I found this to be an o

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Question 1076914: The teacher noticed that 0.68 of the 11th graders wore bluejeans.
If 256 did not wear blue jeans, how many 11th grade students were there altogether?
I found this to be an odd question, I'm not sure what to do with it and the 0.68 confused me
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
The teacher noticed that 0.68 of the 11th graders wore bluejeans.
0.68 means 68%, recall that 68%=68%2F100=0.68
If 256 did not wear blue jeans, how many 11th grade students were there altogether?
let’s 11th grade students be x
we know that total number of students is equal to sum of 256 students who did not wear blue jeans and 0.68x
so, we have
x=0.68x%2B256
x-0.68x=256
0.32x=256
x=256%2F0.32
x=800
there was 800 11th grade students
how many of the 11th graders wore blue jeans:
0.68x=0.68%2A800=544
there was 544 11th graders wore blue jeans
check:
256%2B544=800
800=800