Two hundred ten balloons are filled for a reception. This is 70 percent of the entire number of balloons purchased. Which equation can be used to find the total number of balloons purchased?

Two hundred ten balloons are filled for a reception. This is 70 percent of the entire number of balloons purchased. Which equation can be used to find the total number of balloons purchased?

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If x is the total number of balloons, then by simple proportion 70/100=210/x.

Or, x/210=100/70. Either of these equations could be used.

So x=210×100/70=300 balloons.

Or, 100/70=3×100/3×70=300/210. 

by Top Rated User (1.1m points)

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