Mary516
28.01.2021 •
Mathematics
When Amy was asked to count the number of tricycles and bicycles in her mother’s bicycle shop she got bored. Rather than just counting the vehicles, she decided to count the number of pedals and the number of wheels. She counted 132 wheels and 112 pedals. How many bicycles and how many tricycles did her mother have in her shop? Explain how you got your answer.
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Ответ:
20 tricycles and 36 bicycles.
Step-by-step explanation:
3x + 2y = 132
2x + 2y = 112
X = 20
Y =36
3(20) + 2(y) = 132
60 + 2y = 132
2y = 72
y = 36
Ответ:
No, because 4(2) + 4 ≠ 9
Step-by-step explanation:
No, because 4(2) + 4 ≠ 9