Respuesta :
Add the ratio: 8 + 12 =20
Divide total bike by that: 100/20 = 5
Multiply each part of the ratio by that:
8 x5 = 40
12 x 5 = 60
40 bikes are purple
60 bikes are red
Answer: 40
Step-by-step explanation:
Purple:Red = 8:12
Purple bikes = 8/20 x 100 = 40