8/20 = x/100
Cross multiply and solve for x.
If the ratio of purple bikes to red bikes is 8 to 12 and there are a total of 100 bikes, how many of them are purple?
5 answers
20x=800
x=40 are purple
x=40 are purple
Where did u get 20 from?
How many of them are red?
wait is it 40 or 60