Three parking attendants are required to park cars for each blue lot , while two can handle each red lot. of the 15 lots that will be used for tonight, 60% are blue and 40% are red. how many parking attendants are required for tonight's event

Step-by-step explanation:

Let

x -----> the number of blue lots

y-----> the number of red lots

we know that

------> equation A

we have that

The total parking attendants required for tonight's event is equal to the product of the number of blue lots by three plus the product of the number of red lots by two

so

1/2

Step-by-step explanation:

dy/dx =change in y /change in x

5-4/4-2=1/2