Mathematics, 24.08.2019 06:30 krojas015

At a concert 20% of the people are wearing black dresses or suits,1/4 are wearing navy, 0.35 are wearing brown ,and the rest are wearing a variety of colors. write the percent, fraction, and decimal for the rest of the other people that are wearing other colors

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Let us assume the total number of people at the concert = x
Then
Number of people wearing black dresses or suits = (20/100) * x
      = x/5
Number of people wearing navy = (1/4) * x
      = x/4
Number of people wearing brown = 0.35 * x
   = (35/100) * x
   = 7x/20
So
The number of people wearing a variety of colors = x - [(x/5) + (x/4) + (7x/20)]
      = x - [ (4x + 5x +7x)/20]
      = x - (16x/20)
   = x - (4x/5)
   = (5x - 4x)/5
   = x/5
So it can said from the above deduction that 1/5th of the total number of people were wearing variety of color dresses.

Answer from: Quest

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!

Answer from: Quest

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

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At a concert 20% of the people are wearing black dresses or suits,1/4 are wearing navy, 0.35 are wea...

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