Question

a school dance has a ratio of male students to female students to teachers of 3:2:1. If they are 252 people at the dance, what percentage of attendees are male?

Answer 1

Explanation:

1. Find scale factor.

• (because this is ratio, each value is multiplied by the same factor)

3x + 2x + x = 252

6x = 252

x = 42

2. Find number of males.

• (the remainder make up females and teachers, combined)
• 3x represents males...

3x = 3(42)

126 = # of males

3. Find percentage of males

• percentage is a numerical representation out of 100 pertaining how much of a specific part is in a whole
• there are 126 males out of the 252 attendees and teachers

126/252

= 0.5

= 50%

Answer 2

50%

Explanation:

m: f: s

3:2:1

252p = ratio 6 ( find male)

R.3×252÷6 = 126males

100%=252p find 126p

126×100÷252 = 50%

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