40 percent of the students at rockledge middle school are musicians. 75 percent of those musicians have to read a sheet music when they play instruments. if 38 of the students can play their instruments whithout reading sheet music, how many students are there at rockledge middle school?

Step-by-step explanation:

40/100 musicians .75*40= 30

30 is to 100

as 38 is to x

30          38

  =                  Cross multiply

100          x

30x=3800

divide by three to get

126 and 2/3

you can't split people, so it would be closer to about 127 students.

is there a picture

step-by-step explanation:

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

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