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## In a high school orchestra, the ratio of cellos to violins is 1 to 3. There are 21 violins. Write and solve a proportion that gives the numb

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In a high school orchestra, the ratio of cellos to violins is 1 to 3. There are 21 violins. Write and solve a proportion that gives the number c of cellos in the orchestra.

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Mathematics
6 months
2021-08-30T07:14:17+00:00
2021-08-30T07:14:17+00:00 1 Answers
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## Answers ( )

Answer:Number of cellos =7Step-by-step explanation:The ratio of cellos to violins is 1 to 3=1:3

Total ratio = 1+3=4

To find the total number of cellos and violins in the orchestrs,

Ratio of violins/ Total ratio x Total number of cellos and violins = Number of violins

3/4 x X= 21

X=21 x 4 / 3

X =7x 4 28.

Number of cellos =Ratio of cellos / Total ratio x Total number of cellos and violins

=1/4 x28

=7 cellos