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The seventh and eighth-grade bands held a joint concert. Together, there were 188 band members. If the eighth-grade band is 3 times as big as the seventh-grade band, how big is the eighth-grade?

Let x=7th band and let y=8th band.

a. 47 eighth-grade band students
b. 63 eighth-grade band students
c. 141 eighth-grade band students

Part B:
Write the two equations for this situation.

The seventh and eighthgrade bands held a joint concert Together there were 188 band members If the eighthgrade band is 3 times as big as the seventhgrade band h class=

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Answer:

c. 141 eighth-grade band students

Part B:

y = 3x

1/3y = x