asked 205k views
4 votes
Billy was counting the number of wheels and bike seats at the playground. He saw tricycles and bicycles. He counted 79 wheels and 28 seats.How many bicycles did Billy see?

asked
User Xushao
by
7.8k points

2 Answers

4 votes
Billy saw 5 bikes
System of equations
2x + 3y = 79
x + y = 28
answered
User EinUsername
by
7.9k points
4 votes
28 times 3 is 84. That is 5 too many wheels. If you take 5 tricycles of and replace them with 5 bikes you have 5 less wheels. This means Billy saw 5 bikes and 23 tricycles.
answered
User Silvia Doomra
by
8.7k points
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