A) He makes 36 sculptures in 180 minutes. To find the number of minutes to make 1 sculpture, divide by 36: 36 180 =5. He uses 252 balloons to make 36 sculptures. To find the number of balloons in 1 sculpture, divide by 36: [ tex] \frac{252}{36} [/tex] =7.
B) He uses 7 balloons in 5 minutes. A unit rate is a rate where the denominator is 1; to find this, divide: 5 7 =1.4 balloons/minute.
C) Since he uses 1.4 balloons per minute, multiply by 10 to find the number of balloons in 10 minutes: 1.4 balloons/min *10 min = 14 balloons
Tomas takes 5 minutes to make one balloon sculpture and uses 7 balloons for each sculpture. His unit rate is 1.4 balloons per minute, and he will use 14 balloons in 10 minutes.
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