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3 years ago

6

Mongoose McHuffy has a bike shop. He only has bicycles and tricycles in stock. In total he has 21 items in stock with a total of

51 wheels. Can you tell Mongoose McHuffy how many bicycles and tricycles he has?

1 answer:

olasank [31]3 years ago

5 0

Answer:

12 bikes

9 tricycles

Step-by-step explanation:

x+y=21

2x+3y=51

x=-y+21

2(-y+21)+3y=51

-2y+42+3y=51

y+42=51

y=9

x=12

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