The chart below represents the number of brass instruments (trumpets/trombones) in the marching band and the number of woodwinds (flutes/clarinets). If there are 63 brass in the band, how many woodwinds can we expect to hear?
Brass:Woodwind
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Captionless Image
35
40
45
50
If the ratio of brass instruments to woodwinds is constant, we can find the number of woodwinds by setting up a proportion.
Let's set up the proportion:
Brass / Woodwind = 63 / x
Cross-multiplying, we have:
Brass * x = Woodwind * 63
Since we know that the number of brass instruments is 63, we can substitute this value into the equation:
63 * x = Woodwind * 63
Simplifying, we have:
x = Woodwind
So the number of woodwinds can be found by multiplying 63 by the ratio of brass instruments to woodwinds.
Using the chart, we see that the ratio of brass instruments to woodwinds is 45:40.
Therefore, the number of woodwinds can be calculated as:
63 * (40/45) = 56
So we can expect to hear about 56 woodwinds in the marching band.
pick for these option's:35
40
45
50